Dry alginate beads for fecal microbiota transplantation: From model strains to fecal samples.
Détails
Télécharger: 37075927.pdf (8063.72 [Ko])
Etat: Public
Version: Final published version
Licence: CC BY-NC-ND 4.0
Etat: Public
Version: Final published version
Licence: CC BY-NC-ND 4.0
ID Serval
serval:BIB_1CF66E2BCB5B
Type
Article: article d'un périodique ou d'un magazine.
Collection
Publications
Institution
Titre
Dry alginate beads for fecal microbiota transplantation: From model strains to fecal samples.
Périodique
International journal of pharmaceutics
ISSN
1873-3476 (Electronic)
ISSN-L
0378-5173
Statut éditorial
Publié
Date de publication
25/05/2023
Peer-reviewed
Oui
Volume
639
Pages
122961
Langue
anglais
Notes
Publication types: Journal Article
Publication Status: ppublish
Publication Status: ppublish
Résumé
Clostridioides difficile infection (CDI) is a critical nosocomial infection with more than 124,000 cases per year in Europe and a mortality rate of 15-17 %. The standard of care (SoC) is antibiotic treatment. Unfortunately, the relapse rate is high (∼35 %) and SoC is significantly less effective against recurrent infection (rCDI). Fecal microbiota transplantation (FMT) is a recommended treatment against rCDI from the second recurrence episode and has an efficacy of 90 %. The formulation of diluted donor stool deserves innovation because its actual administration routes deserve optimization (naso-duodenal/jejunal tubes, colonoscopy, enema or several voluminous oral capsules). Encapsulation of model bacteria strains in gel beads were first investigated. Then, the encapsulation method was applied to diluted stools. Robust spherical gel beads were obtained. The mean particle size was around 2 mm. A high loading of viable microorganisms was obtained for model strains and fecal samples. For plate-counting, values ranged from 10 <sup>15</sup> to 10 <sup>17</sup> CFU/g for single and mixed model strains, and 10 <sup>6</sup> to 10 <sup>8</sup> CFU/g for fecal samples. This corresponded to a viability of 30 % to 60 % as assessed by flow cytometry. This novel formulation is promising as the technology is applicable to both model strains and bacteria contained in the gut microbiota.
Mots-clé
Humans, Fecal Microbiota Transplantation, Clostridioides difficile, Treatment Outcome, Feces/microbiology, Clostridium Infections/therapy, Clostridium Infections/microbiology, Alginate, Bacteria formulation, Bacterial viability, Fecal microbiota transplantation, Gut microbiome, Microencapsulation
Pubmed
Web of science
Open Access
Oui
Création de la notice
24/04/2023 13:21
Dernière modification de la notice
10/02/2024 7:18