Table 4.

Expression of erg channel subunits in the cerebellum of P6 and 7-week-old mice^a

Gene	P6 mice		W7 mice		p
	Relative expression level (%)	n	Relative expression level (%)	n
erg1a + erg1a-uso	48.4 ± 3.1	6	51.0 ± 2.6	6	0.589
erg1b + erg1b-uso	2.2 ± 0.6	6	3.0 ± 0.7	6	0.699
erg2	35.3 ± 2.5	6	38.7 ± 2.5	6	0.244
erg3	14.1 ± 0.6	6	7.3 ± 0.6	6	0.002

^aQuantitative RT-PCR: transcripts of erg subunit expression levels were normalized to the expression level of the reference gene pgk1 for P6 and adult (7-week-old) mice. The sum of all expression levels was set to 100% for both, P6 and 7-week-old mice, and the content of each gene in percentage of the total erg gene expression was calculated. Erg subunit expression levels of cerebella from P6 and 7-week-old mice (W7) were analyzed using ANOVA followed by the nonparametrical Mann–Whitney U test. Significance levels were adjusted by Bonferroni post hoc correction. Similar results were obtained with the Tfr as reference gene.