Figure 7From: TNFA deletion alters apoptosis as well as caspase 3 and 4 expression during otitis mediaExpression of caspase mRNAs during NTHi-induced OM. In WTs, caspase 3 was expressed only on day 5, while caspase 4 mRNA was expressed at high levels early in OM, and then again at day 5. While both caspases were expressed at high levels in TNFA-/- MEs prior to OM, expression declined rapidly and became undetectable soon after inoculation.Back to article page