Amanda Lewis, Ph.D. investigates how glycan-degrading enzymes contribute to bacterial vaginosis (BV), a common condition linked to infertility, preterm birth, pelvic inflammatory disease, and increased cancer risk. Her research shows that BV-associated bacteria strip protective sugar coatings—glycans—from vaginal epithelial cells, disrupting normal function and increasing vulnerability to infection. Lewis and her team study specific enzymes, such as sialidases, that remove sialic acid from glycoproteins and mucins. Using clinical samples and imaging techniques, they identify how these changes in glycan composition correlate with disease severity. Their work reveals how glycan degradation contributes to persistent or recurrent BV and opens new pathways for understanding the microbiome's role in women's health. Recorded on 04/16/2025. (#40678)