Efficacy of Lactobacillus fermentum Isolated from the Vagina of a Healthy Woman against Carbapenem-Resistant Klebsiella Infections In VivoEfficacy of Lactobacillus fermentum Isolated from the Vagina of a Healthy Woman against Carbapenem-Resistant Klebsiella Infections In Vivo
- Other Titles
- Efficacy of Lactobacillus fermentum Isolated from the Vagina of a Healthy Woman against Carbapenem-Resistant Klebsiella Infections In Vivo
- Authors
- Tajdozian Hanieh; Seo Hoonhee; Kim Sukyung; Rahim Md Abdur; Lee Saebim; 송호연
- Issue Date
- Oct-2021
- Publisher
- 한국미생물·생명공학회
- Keywords
- Carbapenem-resistant Enterobacteriaceae; carbapenem-resistant Klebsiella; Lactobacillus fermentum; mouse model; mortality
- Citation
- Journal of Microbiology and Biotechnology, v.31, no.10, pp 1383 - 1392
- Pages
- 10
- Journal Title
- Journal of Microbiology and Biotechnology
- Volume
- 31
- Number
- 10
- Start Page
- 1383
- End Page
- 1392
- URI
- https://scholarworks.bwise.kr/sch/handle/2021.sw.sch/20006
- DOI
- 10.4014/jmb.2103.03014
- ISSN
- 1017-7825
1738-8872
- Abstract
- Carbapenem-resistant Enterobacteriaceae (CRE) that produce Klebsiella pneumoniae carbapenemase are increasingly reported worldwide and have become more and more resistant to nearly all antibiotics during the past decade. The emergence of K. pneumoniae strains with decreased susceptibility to carbapenems, which are used as a last resort treatment option, is a significant threat to hospitalized patients worldwide as K. pneumoniae infection is responsible for a high mortality rate in the elderly and immunodeficient individuals. This study used Lactobacillus fermentum as a candidate probiotic for treating CRE-related infections and investigated its effectiveness. We treated mice with L. fermentum originating from the vaginal fluid of a healthy Korean woman and evaluated the Lactobacilli’s efficacy in preventive, treatment, nonestablishment, and colonization mouse model experiments. Compared to the control, pre-treatment with L. fermentum significantly reduced body weight loss in the mouse models, and all mice survived until the end of the study. The oral administration of L. fermentum after carbapenemresistant Klebsiella (CRK) infection decreased mortality and illness severity during a 2-week observation period and showed that it affects other strains of CRK bacteria. Also, the number of Klebsiella bacteria was decreased to below 5.5 log10 CFU/ml following oral administration of L. fermentum in the colonization model. These findings demonstrate L. fermentum’s antibacterial activity and its potential to treat CRE infection in the future.
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