• Sialidase Activity in the Cervicovaginal Fluid Is Associated With Changes in Bacterial Components of -Deprived Microbiota.

      Ferreira, Carolina Sanitá Tafner; Marconi, Camila; Parada, Cristina M G L; Ravel, Jacques; da Silva, Marcia Guimaraes (Frontiers Media S.A., 2022-01-13)
      Sialidase activity in the cervicovaginal fluid (CVF) is associated with microscopic findings of bacterial vaginosis (BV). Sequencing of bacterial 16S rRNA gene in vaginal samples has revealed that the majority of microscopic BV cases fit into vaginal community-state type IV (CST IV), which was recently named "molecular-BV." Bacterial vaginosis-associated bacterial species, such as Gardnerella spp., may act as sources of CVF sialidases. These hydrolases lead to impairment of local immunity and enable bacterial adhesion to epithelial and biofilm formation. However, the impact of CVL sialidase on microbiota components and diversity remains unknown.