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Transition in vaginal Lactobacillus species during pregnancy and prediction of preterm birth in Korean women
- Title
- Transition in vaginal Lactobacillus species during pregnancy and prediction of preterm birth in Korean women
- Authors
- You Y.-A.; Park S.; Kim K.; Kwon E.J.; Hur Y.M.; Kim S.M.; Lee G.; Ansari A.Z.; Park J.; Kim Y.J.
- Ewha Authors
- 김영주; 유영아; 권은진; Ansari Abuzar; 박선화
- SCOPUS Author ID
- 김영주; 유영아; 권은진; Ansari Abuzar; 박선화
- Issue Date
- 2022
- Journal Title
- Scientific Reports
- ISSN
- 2045-2322
- Citation
- Scientific Reports vol. 12, no. 1
- Publisher
- Nature Research
- Indexed
- SCIE; SCOPUS
- Document Type
- Article
- Abstract
- The predominance of vaginal Lactobacillus species, specifically L. crispatus, is important for pregnancy maintenance, but varies by race. The composition of the vaginal microbiome can affect susceptibility to adverse pregnancy outcomes. We performed 16S rRNA gene amplicon sequencing on vaginal swabs taken from Korean pregnant women. Here, we report the transition of Lactobacillus spp. in samples of full-term birth (FTB) collected longitudinally in the second and third trimesters of pregnancy in a cohort study (n = 23) and their association with Lactobacillus abundance and preterm birth (PTB) in a case–control study (n = 200). Lactobacillus species, which was dominant in FTB samples including those that received interventions in the second trimester, did not change until 37 weeks of gestation. However, L. crispatus was replaced by other Lactobacillus species after 37 weeks. The PTB risk showed a closer association with the Lactobacillus abundance than with community state type determined by Lactobacillus species. PTB was associated with less than 90% of Lactobacillus abundance and an increase in Ureplasma parvum in the second trimester. Thus, the vaginal microbiome may change in preparation for childbirth in response to multiple intrinsic factors after 37 weeks of gestation. Monitoring the Lactobacillus abundance may help improve the reliability of microbial PTB biomarkers. © 2022, The Author(s).
- DOI
- 10.1038/s41598-022-26058-5
- Appears in Collections:
- 의과대학 > 의학과 > Journal papers
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