Bifidobacterium longum subsp. infantis CECT 7210 (B. infantis IM-1®) show activity against intestinal pathogens
Abstract
Diarrhea caused by severe acute gastroenteritis is one of the main causes of infant mortality in children under 5 years of age. Therefore it is interesting to perform a preclinical and clinical validation of the efficacy of B. longum subsp. infantis IM-1® against various gastrointestinal pathogens. B. infantis IM-1® was evaluated against different gastrointestinal pathogens that cause diarrhea in infants, using in vitro models, animal models, and clinical studies. B. infantis IM-1® is able in an in vitro model of MA-104 and HT-29 cells to inhibit rotavirus replication (up to 36.05%) as well as to protect cells from infection due to rotavirus (up to 48.50%). An 11-amino acid peptide (MHQPHQPLPPT) with a molecular mass of 1,282 KDa produced by this probiotic with antirotaviral capacity has been identified. In a murine model, the IM-1® strain has been shown to provide in vivo protection against rotavirus infection. In adhesion experiments with HT29, IM-1® was able to displace some pathogens from the enterocyte, especially Cronobacter sakazakii and Salmonella enterica, and prevent the adhesion of C. sakazakii and Shigella sonnei. In a clinical study with 190 babies under 3 months of age, IM-1® reduced episodes of diarrhea, being safe, well tolerated and associated with a lower prevalence of constipation. B. infantis IM-1® is a safe, well tolerated and effective probiotic in reducing episodes of diarrhea caused by the main gastrointestinal pathogens in infants.
Read the paper
Related studies
- Patient-Centered Pharmaceutical Design to Improve Acceptability of Medicines: Similarities and Differences in Paediatric and Geriatric Populations
- Evidence-based clinical practice guidelines for irritable bowel syndrome 2020
- Phase 2b Study of Pimodivir (JNJ-63623872) as Monotherapy or in Combination With Oseltamivir for Treatment of Acute Uncomplicated Seasonal Influenza A: TOPAZ Trial
- Gastrointestinal manifestations in COVID-19
- COVID-19 and Gastrointestinal Disease: Implications for the Gastroenterologist
- Persistent gut barrier damage and commensal bacterial influx following eradication of Giardia infection in mice
Go deeper in Evidence Hub
Evidence Hub adds a study data sheet (design, sample size, evidence level, key numbers), an AI summary and a chat grounded in the paper's text.