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. 2018 Feb 19;10(2):229–240. doi: 10.18632/aging.101384

Table 1. Four ineffective TPP compounds.

Hoechst staining (%) ATP level (%)
mito-TEMPO* 100.0 100.0
cyanomethyl-TPP 97.2 95.1
4-cyanobenzyl-TPP 72.7 68.2
p-xylylene-bis-TPP 69.1 43.9

*(2‐(2,2,6,6‐tetramethylpiperidin‐1‐oxyl‐4‐ylamino)‐2‐oxoethyl‐TPP. Cell viability and intracellular ATP levels were determined in the same treated samples. MCF‐7 cell line, 50 μM treatment for 72 hours.