Fig. 7. (A) Quantification of TH+/NF– `adrenal'
chromaffin cells in E13.5 and 17.5 Sf1+/+ and
Sf1–/– embryos. Data are presented as mean
± s.e.m. Six `adrenal glands' from three different animals were
analysed per group. Every second section was counted. (B)
BrdU+/TH+ adrenal chromaffin cells in Sf1
mutant embryos and wild-type littermates at E13.5 expressed as percentage of
total TH+ cells. BrdU was administered to pregnant females at day
12.5 of gestation. Data are presented as mean±s.e.m. Six `adrenal
glands' from three different animals were analysed per group. Every fifth
section was counted.