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Curcuma longa (Turmeric) is a bright yellow ancient spice native to Asian countries. It has been used as traditional remedy dating back to 600 BC. Turmeric is well known for its applications as a cosmetic, condiment and flavoring agent. The present study was an attempt to explore the protective effect of <i>Curcuma longa</i> rhizomes against physical stress-induced perturbations in rats. Animals were pre-treated with extracts of C. longa rhizomes (crystallized ethylacetate extract; and byproduct-oleoresin) at doses of 200 and 400 mg/kg for 21 days. The effect on swimming endurance followed by post-swimming muscle co-ordination and spontaneous motor activity was evaluated. Estimation of brain monoamine levels in rats and HPLC analysis were carried out. Pre-treated rats with C. longa extracts showed dose dependant significant enhancement in swimming endurance time, increased the duration (sec) of stay on rota-rod apparatus and increased the count (actophotometer score) in spontaneous motor activity. In addition, the pre-treated rats were found to possess normalizing activity against physical stress induced changes in norepinephrine, dopamine and serotonin. Curcuminoids was identified by HPLC analysis and it was one of the active principles responsible for the adaptogenic activity. Extracts of C. longa rhizomes exhibited adaptogenic activity against physical stress model followed by post-swimming muscle co-ordination and spontaneous motor activity, which could be due to the presence of curcuminoids content. In conclusion, the results of the present investigation emphasized the protective effect of C. longa rhizomes against physical stress-induced perturbations in rats.

Keywords

Adaptogenic, Actophotometer, Brain Monoamines, Curcuma longa, Swimming Endurance, Rota-Rod.

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