Pigment Melanin Scavenges Nitric Oxide In Vitro: Possible Relevance to Keloid Formation

Figure 1

Structure of DEA/NO. The sodium salt (𝑅=1) was used in the Griess analysis experiments. The diethylammonium salt (𝑅=2) was used for the trapping of NO with the fluorogenic DAF-2 to form the highly fluorescent DAF-2T.