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The Protective Effect of Curcumin on Ionizing Radiation-induced Cataractogenesis in Rats.
Seher Çimen Ozgen1, Dikmen Dökmeci1, Meryem Akpolat2
1Department of Pharmacology, Faculty of Medicine, Trakya University, Edirne, Turkey.
Balkan Medical Journal
|September 11, 2014
Summary
Curcumin demonstrated significant radioprotective effects against ionizing radiation-induced cataracts in rats. This natural compound reduced cataract formation and improved antioxidant levels, suggesting its potential as a radioprotector.
Area of Science:
- Biomedical Science
- Radiation Biology
- Pharmacology
Background:
- Ionizing radiation exposure can lead to cataracts, a significant cause of vision impairment.
- Oxidative stress plays a crucial role in the pathogenesis of radiation-induced cataracts.
- Curcumin, a natural compound, possesses known antioxidant properties.
Purpose of the Study:
- To investigate the protective efficacy of curcumin against ionizing radiation-induced cataracts in a rat model.
- To evaluate the impact of curcumin on oxidative stress markers in the irradiated lens.
Main Methods:
- Rats were divided into control, dimethyl sulfoxide (DMSO), curcumin, and irradiation groups (with or without DMSO/curcumin).
- A 15 Gy dose of ionizing radiation was administered to induce cataractogenesis.
- Lenticular antioxidant enzyme activity, total antioxidant capacity, glutathione peroxidase (GSH-Px), and malondialdehyde (MDA) levels were measured post-treatment.
Main Results:
- Irradiation alone resulted in 100% cataract formation.
- Curcumin administration significantly reduced the cataract rate to 40% (grades 1 and 2).
- Irradiated rats showed decreased antioxidant enzymes and increased MDA; curcumin treatment reversed these changes, increasing antioxidant levels and decreasing MDA.
Conclusions:
- Curcumin exhibits significant antioxidant and radioprotective properties.
- Curcumin effectively mitigates ionizing radiation-induced cataractogenesis in rats.
- Curcumin is a promising agent for preventing radiation-induced cataracts.
