Small nucleolar RNA U91 is a new internal control for accurate microRNAs quantification in pancreatic cancer

Table 8 Expression values of candidate endogenous control genes are highly variable in PDACs in comparison with normal tissues

Fold change values in PDACs, measured relative to the spike	Genes
Fold change values in PDACs, measured relative to the spike	U6	miR-16	U91
Min	−1.03	−2.94	−3.05
Max	8.12	7.38	4.36
Average ± SD	3.13 ± 1.331; p < 0.01	2.69 ± 1.540; p < 0.01	1.61 ± 0.730; p < 0.01

P values of the Student’s t-test, when p < 0.05, were considered statistically significant