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Abstract Title:

KA-FF 1-4 reduces vancomycin-resistant enterococci and impacts the human gut microbiome.

Abstract Source:

3 Biotech. 2020 Jul ;10(7):295. Epub 2020 Jun 8. PMID: 32550112

Abstract Author(s):

Sa-Ngapong Plupjeen, Wireeya Chawjiraphan, Suvimol Charoensiddhi, Sunee Nitisinprasert, Massalin Nakphaichit

Article Affiliation:

Sa-Ngapong Plupjeen

Abstract:

Probiotic is an alternative method to treat intestinal infection disease caused by antibiotic-resistant bacteria. In this study,KA-FF 1-4 demonstrated to have the potential to inhibit the growth of Vancomycin-resistant enterococci (VRE) by producing anti-microbial substance. In co-culture,KA-FF 1-4 (10 CFU/mL) inhibited the growth of VRE from 10-10 CFU/mL to zero after 6 h of exposure. However, in a gut model contained human gut microbiota, this anti-VRE activity ofKA-FF 1-4 was reduced to only 3.59-6.12%. The unexpected difference in efficacy between the experimental models could be explained by the fact that the growth ofKA-FF 1-4 was stable in the gut model. Leaving aside these limitations, we observed that addingKA-FF 1-4 into the human gut model containing VRE was able to enhance microbial richness and diversity. Specifically, a higher abundance of beneficial microbes from the group ofspp. and.KA-FF 1-4 also enhanced the abundance of,, andand promoted the production of lactic acid in the gut model. However, these effects were not observed in the gut model withoutKA-FF 1-4. Even though this study could not demonstrate a significant anti-VRE effect of theKA-FF 1-4 in a gut model, our results still offer evidence thatKA-FF 1-4 could positively modulate the gut microbiota by promoting the growth of beneficial microbes and their metabolite.KA-FF 1-4 has probiotic properties to fight against VRE infection, therefore further investigation in animal model is needed.

Study Type : In Vitro Study

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