scholarly journals Ionizing radiation-induced metabolic oxidative stress and prolonged cell injury

2012 ◽  
Vol 327 (1-2) ◽  
pp. 48-60 ◽  
Author(s):  
Edouard I. Azzam ◽  
Jean-Paul Jay-Gerin ◽  
Debkumar Pain
2021 ◽  
Vol 19 ◽  
Author(s):  
Tapan Behl ◽  
Gagandeep Kaur ◽  
Aayush Sehgal ◽  
Gokhan Zengin ◽  
Sukhbir Singh ◽  
...  

Background: Ionizing radiation from telluric sources is unceasingly an unprotected pitfall to humans. Thus, the foremost contributors to human exposure are global and medical radiations. Various pieces of evidences assembled during preceding years reveal the pertinent role of ionizing radiation-induced oxidative stress in the progression of neurodegenerative insults such as Parkinson’s disease, which have been contributing to increased proliferation and generation of reactive oxygen species. Objective: This review delineates the role of ionizing radiation-induced oxidative stress in Parkinson’s disease and proposes novel therapeutic interventions of flavonoid family offering effective management and slowing down the progression of Parkinson’s disease. Method: Published papers were searched via MEDLINE, PubMed, etc. published to date for in-depth database collection. Results: The potential of oxidative damage may harm the non-targeted cells. It can also modulate the functions of central nervous system, such as protein misfolding, mitochondria dysfunction, increased levels of oxidized lipids, and dopaminergic cell death, which accelerates the progression of Parkinson’s disease at the molecular, cellular, or tissue levels. In Parkinson’s disease, reactive oxygen species exacerbate the production of nitric oxides and superoxides by activated microglia, rendering death of dopaminergic neuronal cell through different mechanisms. Conclusion: Rising interest has extensively engrossed on the clinical trial designs based on the plant derived family of antioxidants. They are known to exert multifarious impact either way in neuroprotection via directly suppressing ionizing radiation-induced oxidative stress and reactive oxygen species production or indirectly increasing the dopamine levels and activating the glial cells.


2021 ◽  
Vol 14 ◽  
Author(s):  
Adeleh Sahebnasagh ◽  
Fatemeh Saghafi ◽  
Saeed Azimi ◽  
Ebrahim Salehifar ◽  
Seyed Jalal Hosseinimehr

: More than half of cancer patients need radiotherapy during the course of their treatment. Despite the beneficial aspects, the destructive effects of radiation beams on normal tissues lead to oxidative stress, inflammation, and cell injury. Kidneys are affected during radiotherapy of abdominal malignancies. Radiation nephropathy eventually leads to the release of factors triggering systemic inflammation. Currently, there is no proven prophylactic or therapeutic intervention for the management of radiation-induced nephropathy. This article reviews the biomarkers involved in the pathophysiology of radiation-induced nephropathy and its underlying molecular mechanisms. The efficacy of compounds with potential radio-protective properties on amelioration of inflammation and oxidative stress is also discussed. By outlining the approaches for preventing and treating this critical side effect, we evaluate the potential treatment of radiation-induced nephropathy. Available preclinical and clinical studies on these compounds are also scrutinized.


PLoS ONE ◽  
2009 ◽  
Vol 4 (7) ◽  
pp. e6377 ◽  
Author(s):  
Nicole L. Simone ◽  
Benjamin P. Soule ◽  
David Ly ◽  
Anthony D. Saleh ◽  
Jason E. Savage ◽  
...  

Toxicology ◽  
2021 ◽  
pp. 307-316
Author(s):  
Tiziana Cervelli ◽  
Giuseppina Basta ◽  
Serena Del Turco

Author(s):  
Marziyeh Raeispour ◽  
Fereshteh Talebpour Amiri ◽  
Soghra Farzipour ◽  
Arash Ghasemi ◽  
Seyed Jalal Hosseinimehr

2018 ◽  
Vol 53 (4) ◽  
pp. 241-248 ◽  
Author(s):  
J.-L. Ravanat

During the last few decades, a considerable amount of work has been done to better assess the effects of ionizing radiation on living organisms. In particular a lot of attention has been focused on the consequences of modifications of the DNA macromolecule, the support of the genetic information. Detailed information is now available on the formation of radiation-induced DNA lesions at the physical, chemical and biological levels. Emphasis will be placed in this review article on the differences and similarities, in term of DNA lesions formation and outcome, between endogenous oxidative stress and ionizing radiation, both stresses that could produce oxidative DNA lesions through similar mechanistic pathways involving mostly reactive oxygen species. If the chemical nature of the generated lesions is similar, the differences in term of biological consequences could be attributed to their spatial distribution in genomic DNA, since ionizing radiations produce lesions in cluster. These clusters of lesions represent a challenge for the DNA repair machinery. In contrast, endogenous oxidative stress generates scattered lesions that could be repaired with a much higher efficacy and fidelity. Possible implication of the use of DNA damage and repair for human health purposes and radiological protection will be discussed.


2019 ◽  
Vol 22 (5) ◽  
pp. 490-498 ◽  
Author(s):  
Hyung Taek Cho ◽  
Jun Ho Kim ◽  
Wan Heo ◽  
Hyun-Sun Lee ◽  
Jeong Jun Lee ◽  
...  

2020 ◽  
Vol 21 (7) ◽  
pp. 2281 ◽  
Author(s):  
Anna Lichota ◽  
Ireneusz Piwoński ◽  
Sylwia Michlewska ◽  
Anita Krokosz

The aim of this study was to investigate the uptake and accumulation of fullerenol C60(OH)36 into peripheral blood mononuclear cells (PBMCs). Some additional studies were also performed: measurement of fullerenol nanoparticle size, zeta potential, and the influence of fullerenol on the ionizing radiation-induced damage to PMBCs. Fullerenol C60(OH)36 demonstrated an ability to accumulate in PBMCs. The accumulation of fullerenol in those cells did not have a significant effect on cell survival, nor on the distribution of phosphatidylserine in the plasma membrane. However, fullerenol-induced depolarization of the mitochondrial membrane proportional to the compound level in the medium was observed. Results also indicated that increased fullerenol level in the medium was associated with its enhanced transport into cells, corresponding to its influence on the mitochondrial membrane. The obtained results clearly showed the ability of C60(OH)36 to enter cells and its effect on PBMC mitochondrial membrane potential. However, we did not observe radioprotective properties of fullerenol under the conditions used in our study.


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