Table 1.

Loss of YFP⁺/TH⁺ cells in the central mDA region of Neurod6^Cre/Cre;R26R^YFP/YFP mutants per brain hemisphere^{^a}

	E18.5	P3	P14	Adult
n	3	3	3	3
Neurod6 controls (mean ± SEM)	200 ± 3	232 ± 5	207 ± 1	270 ± 16
Neurod6 mutants (mean ± SEM)	211 ± 27	167 ± 10	143 ± 14	185 ± 26
% of YFP⁺/TH⁺ mDA cells lost in mutants relative to controls	NA	28	31	32
Average no. of cells lost in mutants (mean ± SEM)	NA	65 ± 14	65 ± 14	85 ± 15
Significance	NS	^**	^**	^*
p value	0.69	0.004	0.001	0.05

↵^aRaw data of the numbers of mDA neurons counted per brain hemisphere in the central mDA region and the results from statistical analysis, comparing cell counts between Neurod6 mutant and control brains at each stage using the unpaired Student's t test. n, Number of brain samples analyzed; NA, not applicable; NS, not significant.
↵*p < 0.05 (Student's t test);
↵**p < 0.005 (Student's t test).