16809
Iron mediated cytotoxicity disrupted mitochondrial membrane potential ( Delta psi m ) and thereby caused apoptosis mainly by the intrinsic pathway via the down - regulation of I kappa B alpha with a concomitant up - regulation of NF - kB as well as the phosphorylation of ERKs and p38 MAP kinases .
 Chemical: Iron
Please list all entity words in the text that fit the category.Output format is "type1: word1; type2: word2". 
Option: Chemical 
Text: {0} 
Answer:
 Chemical: Iron