Figure 6From: Hyperbaric oxygen upregulates cochlear constitutive nitric oxide synthaseTUNEL assay of cochlea after HBOT. TUNEL assay of cochleae after HBOT. Significant DNA fragmentation was shown in the brain tissue with penetrating injury (A-C); however, no evidence of DNA damage was identified in the cochlear tissue after HBOT (D-F).Back to article page