gbb12139-sup-0001-FigureS1.pdfPDF document53KFigure S1: Assessment of housing conditions on anxiety-related behavior in the zero-maze test. PENK KO animals (n = 10/housing condition) had an elevated anxiety shown by the significantly reduced time spent in the open area compared with WT animals (n = 10/housing condition) when group housed, but not when single housed. Data are expressed as mean ± SEM. **P < 0.01, difference between group-housed WT and PENK KO mice using two-way anova followed by Bonferroni test. Genotype × housing interaction: F1,36 = 6.809; P < 0.05.

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