Statistical analysis
The results are expressed as means ± standard
deviation (SD). One-way analysis of variance (ANOVA)
was used to evaluate the statistical significance between
groups with Dunnett’s test for post-hoc analysis, using
SPSS (version 15.0; SPSS, Chicago, IL, USA). P value
< 0.05 was considered to be statistically significant. Each
experiment was performed at least for three times