Additional cancer-related factors that may influence ghrelin levels, reported in the broader literature, include chemotherapy-induced inflammation and cancer-associated dyspepsia (Malik et al. 2008), cancer-associated inflammation (Guney et al. 2007, Kawaguchi et al. 2015) and postoperative, acute-phase stress (Maruna et al. 2008). Here, GHRL is linked to dyspepsia.