Table 6.

Effect of Wnt/Fzd inhibition on olfactory connection: effect on ORN axons, at maximal concentration

	PBS	Dkk1	sFRP2
Totala	34	16	19
Normal trajectory and connectionb	28 (82%)	2 (12%)	0 (0%)
Lack of connection onlyc	6 (18%)	11 (68%)	15 (79%)
Lack of connection and altered trajectoryd	0	3	4

^aNumber of slices in which ORN axons could be visualized.

^bNumber of slices in which ORN axons were normally oriented and contacted the FB.

^cNumber of slices in which ORN axons were normally oriented but failed to contact the FB.

^dNumber of slices in which ORN axons show abnormal trajectory and (consequently) lack of connection.