Table 1. Detection of Hn33-680 in basal medium after adding a constant amount of Hn33-680 and varying amounts of DrBoNT to the apical medium.

Amount (nM) added to the apical mediuma		Time (h) after adding DrBoNT and Hn33 to the apical medium
Hn33-680	DrBoNT	2	4	8
15	0	0.6±0.02b	1.2±0.4	3.4±0.6
15	3.3	0.7±0.2	1.3±0.5	2.9±0.7
15	133.3	0.7±0.1	1.2±0.4	2.8±0.5
15	266.7	0.6±0.04	1.1±0.3	3.4±0.5

^aVarying amounts of DrBoNT were mixed with a constant amount of Hn33-680 before adding to the apical medium.

^bConcentration (nM) of Hn33-680 detected in the basal medium. Results were the average of three inserts ± standard deviation. When compared to Hn33 alone, groups were not significantly different at ρ <0.05.