Figure 8

Tissue sections stained with propidium iodide ( red ) and TUNEL ( green ) for acute (A)and 72-h recovery (B) rats. The sections were taken from the sameregions of the brain as are shown in Figure 7C,D.The absence of green staining in the acute and recovery rats demonstratesthat no cells with nicked DNA were present in these regions. An image ofjuvenile mouse thymus TUNEL-positive control (C) is included at thesame magnification for contrast to the slight green autofluorescence ofextravascular red blood cells present in the brain sections exposed toultrasound.