BACKGROUND: The purpose of this study was to evaluate the in vitro adherence of different yeasts, isolated from vaginal exudates of patients with vulvovaginal candidiasis (VVC), to the combined contraceptive vaginal ring--NuvaRing. STUDY DESIGN: Four isolates of Candida sp. and one isolate of Saccharomyces cerevisiae were used. Adherence assays were carried out through colony-forming units per milliliter (CFU/mL), radiolabeled quantification and scanning electron microscopy (SEM) of the ring, and the cell surface hydrophobicity (CSH) of the yeasts was determined. RESULTS: All the yeasts were capable of adhering to the vaginal ring, as determined by CFU/mL and in the radiolabeled assay. CSH was compatible with the adherence by CFU/mL. CONCLUSION: SEM proved the adhesion, which was different between Candida albicans and C. tropicalis. The adherence of the tested yeasts to the ring could potentially facilitate the development of VVC and recurrent VVC in susceptible patients using this contraceptive method.
BACKGROUND: The purpose of this study was to evaluate the in vitro adherence of different yeasts, isolated from vaginal exudates of patients with vulvovaginal candidiasis (VVC), to the combined contraceptive vaginal ring--NuvaRing. STUDY DESIGN: Four isolates of Candida sp. and one isolate of Saccharomyces cerevisiae were used. Adherence assays were carried out through colony-forming units per milliliter (CFU/mL), radiolabeled quantification and scanning electron microscopy (SEM) of the ring, and the cell surface hydrophobicity (CSH) of the yeasts was determined. RESULTS: All the yeasts were capable of adhering to the vaginal ring, as determined by CFU/mL and in the radiolabeled assay. CSH was compatible with the adherence by CFU/mL. CONCLUSION: SEM proved the adhesion, which was different between Candida albicans and C. tropicalis. The adherence of the tested yeasts to the ring could potentially facilitate the development of VVC and recurrent VVC in susceptible patients using this contraceptive method.
Authors: Manjula Gunawardana; John A Moss; Thomas J Smith; Sean Kennedy; Etana Kopin; Cali Nguyen; Amanda M Malone; Lorna Rabe; Christoph Schaudinn; Paul Webster; Priya Srinivasan; Elizabeth D Sweeney; James M Smith; Marc M Baum Journal: J Med Microbiol Date: 2011-03-10 Impact factor: 2.472
Authors: Evelyne Kestelyn; Stephen Agaba; Jennifer Ilo Van Nuil; Mireille Uwineza; Marie Michelle Umulisa; Lambert Mwambarangwe; Jean Claude Ndagijimana; Irith De Baetselier; Jozefien Buyze; Thérèse Delvaux; Tania Crucitti; Vicky Jespers; Janneke H H M van de Wijgert Journal: PLoS One Date: 2018-06-01 Impact factor: 3.240
Authors: Louise Carson; Ruth Merkatz; Elena Martinelli; Peter Boyd; Bruce Variano; Teresa Sallent; Robert Karl Malcolm Journal: Pharmaceutics Date: 2021-05-19 Impact factor: 6.321