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. 2006 Sep;2(3):260–272.

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© Meissner et al. Licensee Master Publishing Group

This is an open-access article distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/2.5/), which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.

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The effect of administration of Maca-GO (twice daily. 250 mg/kg body weight) on long-term memory retention in rats expressed as Memory Index: F24 and F48 indicating time needed for rats to find their way back to the initial “reward point” after 24 hr and 48 hr from the training session respectively. Results expressed as group mean and standard error of mean (± SEM). KPO, Control-sham operated only (ovaries not removed); KO, Control-operated & ovaries removed; MPO, Maca group-rats sham operated only (ovaries not removed); MO, Maca-rats operated & ovaries removed.