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. Author manuscript; available in PMC: 2013 Dec 4.
Published in final edited form as: Aging Cell. 2008 Oct;7(5):706–716. doi: 10.1111/j.1474-9726.2008.00418.x

Fig. 6.

Fig. 6

Correlation between mitochondrial non-heme iron level and caspase-9 and caspase-3 activities. Pearson’s tests were performed to determine whether mitochondrial iron levels correlate with caspase-9 and caspase-3 activities. Iron levels in subsarcolemmal mitochondria (SSM) significantly correlated with (A) caspase-9 activity (n = 26) and (B) caspase-3 activity (n = 26). There was no correlation between interfibrillar mitochondria’s (IFM) iron contents and (C) caspase-9 activity, whereas a positive correlation between iron levels and (D) caspase-3 activity was found in IFM (n = 25).