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2.0 1.8 1.6 1.4 1.0 0.8. Fura-2 - ratio. 3 sec. 3 sec. 3 sec. 3 sec. 2 min Put. 5 min Put. 10 min Put. basal.
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2.0 1.8 1.6 1.4 1.0 0.8 Fura-2 - ratio 3 sec 3 sec 3 sec 3 sec 2 min Put 5 min Put 10 min Put basal Supplementary figure 3: The traces show original tracings of Fura-2 signals from cardiomyocytes under basal conditions and subsequent after addition of putrescine. Data are expressed as the ratio of the excitation wave length at 340/380 nm.