Abstract Title:

Holy basil (Ocimum sanctum Linn.) leaf extract enhances specific cognitive parameters in healthy adult volunteers: A placebo controlled study.

Abstract Source:

Indian J Physiol Pharmacol. 2015 Jan-Mar;59(1):69-77. PMID: 26571987

Abstract Author(s):

Suneetha Sampath, S C Mahapatra, M M Padhi, Ratna Sharma, Anjana Talwar

Article Affiliation:

Suneetha Sampath


INTRODUCTION: Ocimum sanctum (OS), known as Holy basil, has been documented to possess neuroprotective, cognition-enhancing and stress relieving effects in animal models. However there is paucity of clinical studies to document these effects.

MATERIALS AND METHODS: Effect of OS on parameters related to cognition and stress in humans was evaluated with administration of 300 milligram capsules of ethanolic leaf extracts of Ocimum sanctum (EtOS) or placebo per day, over 30 days.

RESULTS: Intra-group comparison of Sternberg and Stroop test showed improvement in both the placebo and EtOS groups, however, the improvement stabilized after day 15 in the placebo group. Intergroup comparison revealed a significant improvement of the following cognitive parameters in the EtOS as compared to the placebo: reaction time (RT) and error rate (ER) of Sternberg test, RT of neutral task of Stroop, RT and ER of interference task of Stroop. The intra-group comparison of P300 latency, salivary cortisol, and State-Trait Anxiety Inventory showed improvement over time in the EtOS group alone, though the inter-group difference was significant in the P300 latency alone. There were no changes in heart rate (HR), AHR, or galvanic skin response (GSR) or AGSR.

CONCLUSION: Ocimum sanctum leaf extract seems to have potential cognition-enhancing properties in humans.

Study Type : Human Study

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