Figure 1.
The schematic experimental schedule for the induction of CHS. The mice were sensitized by the topical application of 25 µL of 1% SADBE in acetone to abdominal skin once daily for three consecutive days. Five days later, the right cheek was challenged either with a topical application of 25 µL of 1% SADBE in acetone (“CHS mice”) or the acetone vehicle alone (“control mice”) once a day for 2 consecutive days. Twenty-four hours later after the second challenge, a pruritic or algesic chemical was intradermally injected into the right cheek.
