HealthMap

Salivary Secretor Status and Dental Caries

Overview of Secretor Status

• ABH blood group antigens are secreted into saliva and mucosal fluids in individuals known as secretors (controlled by the FUT2 gene).
• Non-secretors lack these soluble antigens in their bodily secretions, which alters the biochemical composition of the saliva and mucosal pellicle.

Impact on Bacterial Binding

• Oral microbiota adhesion: Salivary agglutinins and glycoproteins act as receptor analogs that bind to specific bacteria, influencing oral colonization.
• Carie-related bacteria: Research indicates that the absence or presence of these blood group determinants in saliva can modulate the adherence of cariogenic organisms, such as Streptococcus mutans, to the tooth enamel and mucosal surfaces.
• Susceptibility differences: Non-secretors often exhibit altered binding profiles for various microorganisms, which can correlate with a different susceptibility to certain infectious and dental conditions compared to secretors.