Table 3.

Average expression stability ranking of six candidate reference genes used in liver and duodenal mucosa tissue to their stability score M

	Liver		Duodenum
Ranking	Gene	M-value*	Gene	M-value
Most stable	ATP5G1	0.059	SDHA	0.066
	RPS9	0.057	GAPDH	0.070
	SDHA	0.062	GPI	0.077
	ACTB	0.068	ATP5G1	0.078
	GPI	0.074	ACTB	0.086
Least stable	GAPDH	0.110	RPS9	0.102

* calculated by the Microsoft Excel-based application GeNorm.