*2.7. Statistical Analysis*

The Statistical Package for the Social Sciences (SPSS) 12.0 KO (SPSS Inc., Chicago, IL, USA) was used for statistical analysis in this study. Data are presented as the mean ± standard deviation. Two-way analysis of variance was conducted to identify the statistical e ffects of the exposure period and each DEHP dose on *Mj-HSP60* and *Mj-HSP67B2* mRNA expression. Significant di fferences were presented as \* *P* < 0.05 and \*\* *P* < 0.01.
