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. 2012 Jan 31;56(1):e2. doi: 10.4081/ejh.2012.e2

Figure 7.

Figure 7

A) TUNEL detection of apoptotic nuclei in neonatal rat hearts; a) ambient air; b) 60% hyperoxia; c) 95% hyperoxia; d) ambient air 6 weeks; e) 60% hyperoxia and ambient air 4 weeks; c(−) negative control. Arrows indicate TUNEL positive nuclei (brown), negative nuclei are blue; scale bar 50 µm; B) Graphic representation of TUNEL positive nuclei % (±SD) densitometric analysis determined by direct visual counting of ten fields (mean values) for each of three slides per sample; *95% hyperoxia vs ambient air P<0.05.