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. 2022 Mar 8;11(3):514. doi: 10.3390/antiox11030514

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© 2022 by the authors.

Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (https://creativecommons.org/licenses/by/4.0/).

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Effect of Vit. K2 administration on social anxiety behavioral test. (A) Session I: Time (sec.) spent in the empty chamber, (B) Session I: Time (sec.) spent in stranger chamber 1, (C) Session II: Time (sec.) spent in stranger chamber 1, and (D) Session II: Time (sec.) spent in stranger II chamber. The rats were orally gavaged with viz. K2 (30 mg/kg) once daily 5 days per week for 17 months. Data are expressed as mean ± SE. Statistical analysis was conducted using (ANOVA) followed by Tukey–Kramer’s post hoc test, (n = 6, p ≤ 0.05). * Significance versus adult control; # significance versus aged control.