Hymenolepis diminuta Reduce Lactic Acid Bacterial Load and Induce Dysbiosis in the Early Infection of the Probiotic Colonization of Swiss Albino Rat.
Microorganisms(2022)
Abstract
Tapeworm infection continues to be an important cause of morbidity worldwide. Recent metagenomics studies have established a link between gut microbiota and parasite infection. The identification of gut probiotics is of foremost importance to explore its relationship and function with the parasite in the host. In this study, the gut content of hosts infected with tapeworm and non-infected host gut were disected out to determine their Lactic acid bacterial (LAB) population in MRS agar and microbial community was analysed by metagenomics. The bacterial count was calculated on a bacterial counting chamber and their morphology was determined microscopically and biochemically. Further, to determine the safety profile antibiotic resistance test, antimicrobial, hemolytic activity, and adhesion capability were calculated. We found six dominant probiotic strains and a decrease in LAB load from 1.7-2.3 × 10 CFU/mL in the uninfected group to a range of 8.4 × 10 CFU/mL to 3.2 × 10 CFU/mL in the infected groups with respect to an increase in the parasite number from 10-18. In addition, we found a depletion in the probiotic relative abundance of and an enrichment in potentially pathogenic , , and . Phylogenetic analysis of the six probiotics revealed a close similarity with different strains of , , , , , and . Thus, this study suggests that the parasite inhibits probiotic colonization in the gut during its early establishment of infection inside the host.
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Key words
Lactic acid bacteria,Lactobacillus,dysbiosis,gut microbiota,parasite infections,relative abundance
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