Impact of a hormone-releasing intrauterine system on the vaginal microbiome: a prospective baboon model

Autor: Jason D. Bell, Vincent B. Young, Christine M. Bassis, Ingrid L. Bergin, Mayu Uchihashi, Sara A. Hashway, Dorothy L. Patton, David M. Aronoff, Kelsey Schmidt
Rok vydání: 2013
Předmět:
Zdroj: Journal of Medical Primatology. 43:89-99
ISSN: 0047-2565
DOI: 10.1111/jmp.12090
Popis: Background Use of a levonorgestrel-releasing intrauterine system (LNG-IUS) in humans may alter vaginal microbial populations and susceptibility to pathogens. This study evaluated the time-dependent effects of an LNG-IUS on the vaginal microbiome of the baboon, a useful animal model for reproductive studies. Methods Levonorgestrel-releasing intrauterine systems were inserted into three reproductively mature, female baboons. The animals were evaluated for 6 months by physical examination and Gram-stained cytology. The vaginal microbiota was characterized at each timepoint by culture-independent analysis of the 16S rRNA-encoding gene. Results Each baboon harbored a diverse vaginal microbiome. Interindividual variation exceeded intra-individual variation. Diversity declined over time in one baboon and showed mild fluctuations in the other two. There were no significant community differences from early to late post-LNG-IUS placement. Conclusions The baboon vaginal microbiome is unique to each individual and is polymicrobial. In this pilot study, the vaginal microbiome remained stable from early to late post-LNG-IUS placement.
Databáze: OpenAIRE