. 2002 Feb 5;2:1. doi: 10.1186/1471-213X-2-1

Table 3.

Time of appearance of immunoreactivity to axonal, glial and neuronal markers in embryos implanted with a bead at stage 17 and sacrificed at stages 18–21. The asterisk indicates the appearance of a marker earlier than in controls. OE, olfactory epithelium; ON, olfactory nerve; TEL, telencephalon.

	MARKER:
Experiment	MAP1b	NF	NCAM	PGP9.5	P₀	GnRH

CONTROL	stage 18	stage 19	stage 20	stage 21	stage 21	stage 21 OE/ON
PN-1	stage 18	^* stage 18	^* stage 19	^* stage 20	stage 21	stage 21 OE/ON
TRYPSIN	stage 18	stage 19	stage 20	stage 21	stage 21	stage 21 OE/ON/ TEL