Mucin in the prostate: A histochemical study in normal glands, latent, clinical, and colloid cancers

Abstract

Methylation (4 hours at 37" C. in methanol with 0.1N hydrochloric acid), followed by the AB, PAS stain. This procedure blocks the AB staining of nonsulfated acid mucinse. 24 by methylating AB-receptive carboxyl groups.