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Modifiers of radiation effects in the eye
Norman J Kleiman1, Fiona A Stewart2, Eric J Hall3
1Department of Environmental Health Sciences, Eye Radiation and Environmental Research Laboratory, Columbia University, Mailman School of Public Health, 722 West 168th St., 11th Floor, New York, NY 10032, USA.
Life Sciences in Space Research
|December 5, 2017
Summary
New radioprotector compounds show promise for mitigating radiation injury. Research is exploring their effectiveness in eye models, offering potential countermeasures for radiological threats and space exploration.
Area of Science:
- Radiation biology
- Ophthalmology
- Pharmacology
Background:
- Growing concerns about radiation exposure from terrorism, accidents, radiotherapy, and space travel necessitate effective medical countermeasures.
- Existing radioprotectors, like the Walter Reed (WR) class, have limitations due to toxicity and efficacy issues, especially with high-LET radiation.
- Animal models of radiation cataract have been used for decades, but data on heavy ions and neutrons is limited.
Purpose of the Study:
- To investigate the potential of novel radioprotector molecules, such as PrC-210, for preventing or reducing radiation-induced ocular damage.
- To evaluate the efficacy of these new compounds in eye models, considering their low-dose effectiveness and reduced side effects.
- To explore the utility of non-invasive ocular monitoring for assessing radioprotective and mitigating abilities.
Main Methods:
- Utilizing established animal models of radiation cataract to test radioprotective compounds.
- Examining the effects of novel sulfhydryl compounds, including PrC-210, on ocular radiation damage.
- Assessing the efficacy of countermeasures against various radiation types, including heavy ions and neutrons.
Main Results:
- Previous radioprotectors (e.g., WR class) showed limited success and toxicity concerns.
- Newer compounds, like PrC-210, demonstrate potential effectiveness at lower doses with fewer side effects.
- The study aims to examine the yet-unexplored ability of these new compounds to modify ocular radiation damage.
Conclusions:
- Eye models offer a promising platform for evaluating novel radioprotective agents due to sensitive, non-invasive, long-term monitoring capabilities.
- Further research is needed to validate the radioprotective and radiation-mitigating potential of new compounds like PrC-210 against diverse radiation types.
- Developing effective countermeasures is crucial for addressing risks associated with radiological events and long-duration space missions.
Keywords:
EyeGamma IrradiationRadiation cataractRadiation countermeasuresRadioprotectionSpace radiationX-rayMore Related Videos
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