RNASE1 and permanent neonatal diabetes mellitus-pancreatic and cerebellar agenesis syndrome: The results of the ELISA using this antibody to detect serum RNase1 revealed that the level of RNase1 recognized by the RrhRN0723 mAb was significantly decreased in the sera of patients with PaCa compared with healthy donors or patients with diseases other than PaCa (Fig. 2).