Abstract
Glycosaminoglycans (GAGs) in monkey palatal lamina propria plus both fatty and glandular zones of palatal submucosa were compared.
Chemical analysis revealed that GAG contents of the lamina propria and glandular zone were higher than that of the fatty zone. The four GAGs identified by electrophoretic analysis were hyaluronic acid, dermatan sulfate, chondroitin sulfate and heparan sulfate. Each mucosal layer contained all four GAG components.
The predominant GAG in both the lamina propria and glandular zone was dermatan sulfate followed by hyaluronic acid. The reverse situation (predominant hyaluronic acid, less prominent dermatan sulfate) was noted in the fatty zone of the submucosa. The three tissue regions showed different molar ratios of unsaturated chondroitin sulfate disaccharides. The ratio of ΔDi-4S to ΔDi-6S was lower in the lamina propria than in either the fatty or glandular submucosal zones.
