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Ng S, Chen M, Kundu S, Wang X, Zhou Z, Zheng Z, Qing W, Sheng H, Wang Y, He Y, Bennett PR, MacIntyre DA, Zhou H. Large-scale characterisation of the pregnancy vaginal microbiome and sialidase activity in a low-risk Chinese population. NPJ Biofilms Microbiomes 2021; 7:89. [PMID: 34930922 PMCID: PMC8688454 DOI: 10.1038/s41522-021-00261-0] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/14/2021] [Accepted: 11/29/2021] [Indexed: 12/12/2022] Open
Abstract
Vaginal microbiota-host interactions are linked to preterm birth (PTB), which continues to be the primary cause of global childhood mortality. Due to population size, the majority of PTB occurs in Asia, yet there have been few studies of the pregnancy vaginal microbiota in Asian populations. Here, we characterized the vaginal microbiome of 2689 pregnant Chinese women using metataxonomics and in a subset (n = 819), the relationship between vaginal microbiota composition, sialidase activity and leukocyte presence and pregnancy outcomes. Vaginal microbiota were most frequently dominated by Lactobacillus crispatus or L. iners, with the latter associated with vaginal leukocyte presence. Women with high sialidase activity were enriched for bacterial vaginosis-associated genera including Gardnerella, Atopobium and Prevotella. Vaginal microbiota composition, high sialidase activity and/or leukocyte presence was not associated with PTB risk suggesting underlying differences in the vaginal microbiota and/or host immune responses of Chinese women, possibly accounting for low PTB rates in this population.
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Affiliation(s)
- Sherrianne Ng
- Imperial College Parturition Research Group, Imperial College London, London, United Kingdom.,March of Dimes European Prematurity Research Centre, Imperial College London, London, United Kingdom
| | - Muxuan Chen
- Department of Laboratory Medicine, Zhujiang Hospital, Southern Medical University, Guangzhou, Guangdong, China.,Microbiome Medicine Center, Zhujiang Hospital, Southern Medical University, Guangzhou, Guangdong, China
| | - Samit Kundu
- Imperial College Parturition Research Group, Imperial College London, London, United Kingdom.,March of Dimes European Prematurity Research Centre, Imperial College London, London, United Kingdom
| | - Xuefei Wang
- Department of Obstetrics and Gynecology, Nanfang Hospital, Southern Medical University, Guangzhou, China
| | - Zuyi Zhou
- Department of Laboratory Medicine, Zhujiang Hospital, Southern Medical University, Guangzhou, Guangdong, China.,Microbiome Medicine Center, Zhujiang Hospital, Southern Medical University, Guangzhou, Guangdong, China
| | - Zhongdaixi Zheng
- School of Public Health, Southern Medical University, Guangzhou, Guangdong, China
| | - Wei Qing
- Department of Laboratory Medicine, Zhujiang Hospital, Southern Medical University, Guangzhou, Guangdong, China.,Microbiome Medicine Center, Zhujiang Hospital, Southern Medical University, Guangzhou, Guangdong, China
| | - Huafang Sheng
- Department of Laboratory Medicine, Zhujiang Hospital, Southern Medical University, Guangzhou, Guangdong, China.,Microbiome Medicine Center, Zhujiang Hospital, Southern Medical University, Guangzhou, Guangdong, China
| | - Yan Wang
- Department of Obstetrics and Gynecology, Nanfang Hospital, Southern Medical University, Guangzhou, China
| | - Yan He
- Department of Laboratory Medicine, Zhujiang Hospital, Southern Medical University, Guangzhou, Guangdong, China.,Microbiome Medicine Center, Zhujiang Hospital, Southern Medical University, Guangzhou, Guangdong, China
| | - Phillip R Bennett
- Imperial College Parturition Research Group, Imperial College London, London, United Kingdom.,March of Dimes European Prematurity Research Centre, Imperial College London, London, United Kingdom
| | - David A MacIntyre
- Imperial College Parturition Research Group, Imperial College London, London, United Kingdom. .,March of Dimes European Prematurity Research Centre, Imperial College London, London, United Kingdom.
| | - Hongwei Zhou
- Department of Laboratory Medicine, Zhujiang Hospital, Southern Medical University, Guangzhou, Guangdong, China. .,Microbiome Medicine Center, Zhujiang Hospital, Southern Medical University, Guangzhou, Guangdong, China. .,State key laboratory of Organ Failure Research, Southern Medical University, Guangzhou, Guangdong, China.
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