Figure 6From: RETRACTED ARTICLE: Gene expression analysis indicates CB1 receptor upregulation in the hippocampus and neurotoxic effects in the frontal cortex 3 weeks after single-dose MDMA administration in Dark Agouti ratsCorrelation between the microarray and the Fluidigm GEx PCR array data. The figure summarizes the correlation between the logarithmic microarray data and the validation results for both the 200Â ng and 500Â ng samples. For validation purposes we used the polymerase chain reaction-based (PCR-based) Fluidigm GEx array with 19 genes and upon receiving the results, the numerical analysis was performed with the inbuilt corr.test function of the R statistical computing program. The results are in agreement with the commonly observed decreasing accuracy of the fold change values of the microarray method at the higher and lower ends. The correlation coefficients were 0.619 and 0.610 for the 200Â ng and 500Â ng samples, respectively. Red line represents the regression line.Back to article page