NAMPT and esophageal squamous cell carcinoma: Additionally, although NAMPT rs2505568 and rs9034 are located in the 3’ untranslated region, which may affect NAMPT expression, their polymorphisms were found to be independent of the development of dilated cardiomyopathy, esophageal squamous cell carcinoma (ESCC), and bladder cancer (Dou et al., 2015; Zhang et al., 2015; Zhang, Zhou, et al., 2014).