Figure 4: Undetectable salivary DMBT1 level in Attention Control participants. Saliva from Attention Control group participants () was collected at indicated time points. Equal volumes of saliva were loaded and analyzed by Western Blotting with DMBT1 antibody as described under Methods. There was no DMBT1 band detected (a). The same membrane was stained with Ponceau S and shown for loading control (b).