Mapping differences in salivary gland secretions using dried saliva spots

Dried saliva spot (DSS) sampling is a minimally invasive extraction technique that allows for the spatial mapping of salivary protein distribution in the oral cavity. In conjunction with untargeted nanoLC-Orbitrap-MS/MS analysis, we used DSS to compare the unstimulated proteomes secreted by the parotid and submandibular/sublingual salivary glands