Expression of KRT10 and KRT19 genes in the stratified cholesteatoma patient groups and control samples.

<p>Surgical samples were homogenized, total RNA was prepared and the cDNA generated was used as template for quantitative RT-PCR. Expression values were normalized to the PPIA gene. (A) The expression of KRT10 is significantly lower in adult recurrent samples than in pediatric recurrent cases or control samples. B. No significant difference was found in KRT19 expression between control and cholesteatoma recurrent or nonrecurrent samples. The mean and standard error of the mean values are shown. The significance levels are: (*) P-value < 0.05, (**) P-value < 0.01. The mean and standard error of the mean values are shown.