Therapeutic and prophylactic effects of oral administration of probiotic Enterococcus faecium Smr18 in Salmonella enterica-infected mice

Autor: Muzamil Rashid, Anmol Narang, Shubham Thakur, Subheet Kumar Jain, Sukhraj Kaur
Jazyk: angličtina
Rok vydání: 2023
Předmět:
Zdroj: Gut Pathogens, Vol 15, Iss 1, Pp 1-14 (2023)
Druh dokumentu: article
ISSN: 1757-4749
DOI: 10.1186/s13099-023-00548-x
Popis: Abstract Salmonella enterica serotype Typhi causes chronic enteric fever known as typhoid. Prolonged treatment regimen used for the treatment of typhoid and indiscriminate use of antibiotics has led to the emergence of resistant strains of S. enterica that has further increased the severity of the disease. Therefore, alternative therapeutic agents are urgently required. In this study, probiotic and enterocin-producing bacteria Enterococcus faecium Smr18 was compared for both its prophylactic and therapeutic efficacy in S. enterica infection mouse model. E. faecium Smr18 possessed high tolerance to bile salts and simulated gastric juice, as treatment for 3 and 2 h resulted in 0.5 and 0.23 log10 reduction in the colony forming units, respectively. It exhibited 70% auto aggregation after 24 h of incubation and formed strong biofilms at both pH 5 and 7. Oral administration of E. faecium in BALB/c mice infected with S. enterica significantly (p
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