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. Author manuscript; available in PMC: 2010 Jan 1.
Published in final edited form as: J Photochem Photobiol A Chem. 2009 Jan 1;201(1):50–56. doi: 10.1016/j.jphotochem.2008.09.013

Table 2.

Effect of scavengers on DNA photodamage by tamoxifen

Experiment Reactive Species Affected Effect on DNA damage
Nitrogen Purged O2 no effect
Histidine, 50 mM OH•/1O2 decrease
SOD, 200 units/mL O2•− no effect
NaN3, 50 mM 1O2 decrease
KI, 50 mM excited singlet state decrease
D2O, 100% enhance 1O2 lifetime no effect
2-Mercaptoethanol, 1.0 M carbon centered radical decrease