Protection against radiation-induced conditioned taste aversion by Centella asiatica

Area of Science:

• Radiological Sciences
• Neuroscience
• Pharmacology

Background:

• Radiation exposure can induce behavioral changes, including conditioned taste aversion (CTA), even at low doses.
• The mechanisms of radiation-induced behavioral degradation require further investigation.
• Understanding these effects is crucial for managing patients undergoing radiotherapy.

Purpose of the Study:

• To investigate the effects of low-dose 60Co gamma irradiation on body weight and CTA in male rats.
• To evaluate the radioprotective potential of Centella asiatica (aqueous extract) against radiation-induced behavioral changes.
• To compare the efficacy of Centella asiatica with ondansetron, a standard antiemetic drug.

Main Methods:

• Male rats were exposed to a single 2 Gy dose of whole-body 60Co gamma irradiation.
• Conditioned taste aversion (CTA) was induced using saccharin solution.
• Rats were treated with Centella asiatica (100 mg/kg) or ondansetron (1 mg/kg) prior to irradiation.
• Body weight and saccharin consumption were monitored post-irradiation.

Main Results:

• A 2 Gy radiation dose significantly reduced body weight and induced CTA in rats.
• Centella asiatica administration provided significant radioprotection against body weight loss and CTA.
• Ondansetron showed a higher degree of CTA protection on day 1, but both treatments were equally effective on day 2.
• Centella asiatica demonstrated consistent reduction in CTA from day 2 to day 5 post-irradiation.

Conclusions:

• Centella asiatica exhibits significant radioprotective effects against radiation-induced body weight loss and conditioned taste aversion.
• The findings suggest that Centella asiatica may be a viable option for preventing radiation-induced behavioral alterations in clinical radiotherapy.
• Further research is warranted to elucidate the precise mechanisms of Centella asiatica's radioprotective action.