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Lookup NU author(s): Nicola Tildesley, Emeritus Professor Elaine Perry, Dr Clive Ballard, Dr Sergey Savelev
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Sage (Salvia) has a longstanding reputation in British herbal encyclopaedias as an agent that enhances memory, although there is little evidence regarding the efficacy of sage from systematized trials. Based on known pharmacokinetic and binding properties, it was hypothesised that acute administration of sage would enhance memory in young adult volunteers. Two experiments utilised a placebo-controlled, double-blind, balanced, crossover methodology. In Trial 1, 20 participants received 50, 100 and 150 μl of a standardised essential oil extract of Salvia lavandulaefolia and placebo. In Trial 2, 24 participants received 25 and 50 μl of a standardised essential oil extract of S. lavandulaefolia and placebo. Doses were separated by a 7-day washout period with treatment order determined by Latin squares. Assessment was undertaken using the Cognitive Drug Research computerised test battery prior to treatment and 1, 2.5, 4 and 6 h thereafter. The primary outcome measures were immediate and delayed word recall. The 50 μl dose of Salvia essential oil significantly improved immediate word recall in both studies. These results represent the first systematic evidence that Salvia is capable of acute modulation of cognition in healthy young adults. © 2003 Elsevier Science Inc. All rights reserved.
Author(s): Tildesley NTJ, Kennedy DO, Perry EK, Ballard CG, Savelev S, Wesnes KA, Scholey AB
Publication type: Article
Publication status: Published
Journal: Pharmacology Biochemistry and Behavior
Year: 2003
Volume: 75
Issue: 3
Pages: 669-674
Print publication date: 01/06/2003
ISSN (print): 0091-3057
ISSN (electronic): 1873-5177
Publisher: Elsevier
URL: http://dx.doi.org/10.1016/S0091-3057(03)00122-9
DOI: 10.1016/S0091-3057(03)00122-9
PubMed id: 12895685
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