Extraintestinal infection of Listeria monocytogenes and susceptibility to spontaneous abortion during pregnancy: A systematic review and meta-analysis

doi:10.13105/wjma.v9.i3.317

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World Journal of Meta-Analysis

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Meta-Analysis

World J Meta-Anal. Jun 28, 2021; 9(3): 317-326
Published online Jun 28, 2021. doi: 10.13105/wjma.v9.i3.317

Extraintestinal infection of Listeria monocytogenes and susceptibility to spontaneous abortion during pregnancy: A systematic review and meta-analysis

Amir Yousefi, Mohsen Karbalaei, Masoud Keikha

Amir Yousefi, Masoud Keikha, Department of Microbiology and Virology, Faculty of Medicine, Mashhad University of Medical Sciences, Mashhad 1313199137, Iran

Mohsen Karbalaei, Department of Microbiology and Virology, School of Medicine, Jiroft University of Medical Sciences, Jiroft 1313199137, Iran

Author contributions: The study was conceived by Keikha M; Keikha M and Karbalaei M analyzed the data; Yousefi A and Karbalaei M wrote the draft; Keikha M provided critical analysis and revision the draft; All authors read and approved the final manuscript.

Conflict-of-interest statement: There is no conflict of interest among the authors.

PRISMA 2009 Checklist statement: The authors have read the PRISMA 2009 Checklist, and the manuscript was prepared and revised according to the PRISMA 2009 Checklist.

Corresponding author: Masoud Keikha, PhD, Doctor, Instructor, Teaching Assistant, Department of Microbiology and Virology, Faculty of Medicine, Mashhad University of Medical Sciences, Qoreishi Center, Daneshgah Street, Mashhad 1313199137, Iran. masoud.keykha90@gmail.com

Received: April 23, 2021
Peer-review started: April 23, 2021
First decision: June 7, 2021
Revised: June 13, 2021
Accepted: June 16, 2021
Article in press: June 16, 2021
Published online: June 28, 2021
Processing time: 79 Days and 15.1 Hours

ARTICLE HIGHLIGHTS

Research background

Spontaneous abortion is one of the most important concerning issues in pregnant women, and it has been suggested that Listeria monocytogenes (L. monocytogenes) infection can play a key role in pathogenesis of this disease.

Research motivation

We conducted the present study to estimate the risk of infection with L. monocytogenes in the development of spontaneous abortion during pregnancy.

Research objectives

The aim of this study was evaluation of the probable connection between infection with L. monocytogenes and risk of spontaneous abortion in pregnancy.

Research methods

We conducted a systematic literature review using several databases to search the relevant case-control studies on the association between L. monocytogenes infection and spontaneous abortion. Finally, the impact of infection with L. monocytogenes and risk of spontaneous abortion was assessed via odds ratio at corresponding 95% confidence intervals.

Research results

The frequency of L. monocytogenes infection was significantly increased in pregnant women with spontaneous abortion in comparison with healthy subjects. There is significant association between infection with L. monocytogenes and development of spontaneous abortion in pregnant women (odds ratio: 2.778; 2.130-3.623 with 95% confidence interval).

Research conclusions

Our results suggested the infection with L. monocytogenes is a marker for prediction of the risk of development of spontaneous abortion during pregnancy.

Research perspectives

Regarding the importance of L. monocytogenes in the initiation and development of spontaneous abortion, it is important that all aspects of this pathogen, such as diagnosis, treatment, control, and vaccination, be considered by all researchers around the world.