Publication details

The impact of Opisthorchis felineus infection and praziquantel treatment on the intestinal microbiota in children

Authors

SOKOLOVA Tatiana S. PETROV Viacheslav SALTYKOVA Irina V. DOROFEEVA Yulia B. TYAKHT Alexander V. OGORODOVA Ludmila M. FEDOROVA Olga S.

Year of publication 2021
Type Article in Periodical
Magazine / Source Acta Tropica
MU Faculty or unit

Faculty of Science

Citation
Web https://doi.org/10.1016/j.actatropica.2021.105835
Doi http://dx.doi.org/10.1016/j.actatropica.2021.105835
Keywords Opisthorchis felineus; Parasite; Gut microbiota; 16S rRNA gene sequencing; Children
Description The presence of some species of helminths is associated with changes in host microbiota composition and diversity, which varies widely depending on the infecting helminth species and other factors. We conducted a prospective case-control study to evaluate the gut microbiota in children with Opisthorchis felineus infection (n=50) before and after anthelmintic treatment and in uninfected children (n=49) in the endemic region. A total of 99 children and adolescents aged between 7 and 18 years were enrolled to the study. Helminth infection was assessed before and at 3 months after treatment with praziquantel. A complex examination for each participant was performed in the study, including an assessment of the clinical symptoms and an intestinal microbiota survey by 16S rRNA gene sequencing of stool samples. There was no change in alpha diversity between O. felineusinfected and control groups. We found significant changes in the abundances of bacterial taxa at different taxonomic levels between the infected and uninfected individuals. Enterobacteriaceae family was more abundant in infected participants compared to uninfected children. On the genus level, O. felineus-infected participants? microbiota showed higher levels of Lachnospira, Escherichia-Shigella, Bacteroides, Eubacterium eligens group, Ruminiclostridium 6, Barnesiella, Oscillibacter, Faecalitalea and Anaerosporobacter and reduction of Blautia, Lachnospiraceae FCS020 and Eubacterium hallii group in comparison with the uninfected individuals. Following praziquantel therapy, there were significant differences in abundances of some microorganisms, including an increase of Faecalibacterium and decrease of Megasphaera, Roseburia. Enterobacteriaceae and Escherichia abundances were decreased up to the control group values. Our results highlight the importance of the host-parasitemicrobiota interactions for the community health in the endemic regions.

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