VCAM1 and diabetes mellitus: VCAM1, a member of the Ig superfamily, encodes a cell surface salivary gland glycoprotein expressed by endothelial cells, whose main function is to participate in cell adhesion and signaling, and possibly in neurodegenerative diseases of diabetes (Willeit et al., 2017; Kong et al., 2018; Niedzielski et al., 2020).