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. 2014 Jun 12;18(3):233–239. doi: 10.4196/kjpp.2014.18.3.233

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Copyright © 2014 The Korean Physiological Society and The Korean Society of Pharmacology

This is an Open Access article distributed under the terms of the Creative Commons Attribution Non-Commercial License (http://creativecommons.org/licenses/by-nc/3.0/) which permits unrestricted non-commercial use, distribution, and reproduction in any medium, provided the original work is properly cited.

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Fig. 3 — Effects of treatment with 17α-ethinylestradiol (E; 30 µg/kg) and Hpericum Perforatum (HP; 125, 250, 500 mg/kg) on hippocampus. (A) Tryptophan, (B) kynurenine and (C) kynurenine/tryptophan ratio of OVX Wistar rats. Data are mean±SD, number of animals per group=6, OVX=ovariectomized. One way ANOVA followed by Tukey's Multiple Comparisons test: ^ap<0.05, compared to control sham operated group. ^bp<0.05 compared to OVX untreated group and ^cp<0.05 compared to 17α-ethinylestradiol treated group.