2.3 Statistical analysis
All measurements were carried out in triplicate, and results were
expressed as means ± standard deviations (SD). The data were
statistically analyzed by one-way ANOVA. Mean values between different
samples were compared by Turkey’s multiple tests, and significant
differences were established at p < 0.05. Correlation analysis
was performed by Pearson’s test. Hierarchical cluster analysis (HCA) was
used for classifying the samples. Statistical analyses were carried out
with SPSS version 22.0 (IBM Corporation, New York, USA).