C4BPB and posterior cortical atrophy: Notably, PHA and AAL glycoforms of the protein C4BPB were both elevated relative to the reference sample and were significantly higher in the PCa group than in the BPH group (PHA p = 0.006, AAL p = 0.032), but showed considerable overlap in the log2H/L ratios in the UNB fraction, suggesting increased expression only among these glycoforms.