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Goya-Jorge E, Gonza I, Bondue P, Druart G, Al-Chihab M, Boutaleb S, Douny C, Scippo ML, Thonart P, Delcenserie V. Evaluation of Four Multispecies Probiotic Cocktails in a Human Colonic Fermentation Model. Probiotics Antimicrob Proteins 2023:10.1007/s12602-023-10162-7. [PMID: 37725305 DOI: 10.1007/s12602-023-10162-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 09/13/2023] [Indexed: 09/21/2023]
Abstract
Bacteriotherapy represents an attractive approach for both prophylaxis and treatment of human diseases. However, combining probiotic bacteria in "cocktails" is underexplored, despite its potential as an alternative multi-target therapy. Herein, three-strain probiotic mixtures containing different combinations of Bacillus (Bc.) coagulans [ATB-BCS-042], Levilactobacillus (Lv.) brevis [THT 0303101], Lacticaseibacillus (Lc.) paracasei [THT 031901], Bacillus subtilis subsp. natto [ATB-BSN-049], Enterococcus faecium [ATB-EFM-030], and Bifidobacterium (Bf.) animalis subsp. lactis [THT 010802] were prepared. Four cocktails (PA: Bc. coagulans + Lv. brevis + Lc. paracasei, PB: Bc. subtilis subsp. natto + Lv. brevis + Lc. paracasei, PC: E. faecium + Lv. brevis + Lc. paracasei, PD: Bc. coagulans + Lv. brevis + Bf. animalis subsp. lactis) were tested using a short-term (72 h) simulation of the human colonic microbiota in a final dose of 6 × 109 CFU. All these probiotic mixtures significantly increased butyrate production compared to the parallel control experiment. PA and PB promoted a bifidogenic effect and facilitated lactobacilli colonization. Furthermore, reporter gene assays using the AhR_HT29-Lucia cell line revealed that fermentation supernatants from PA and PB notably induced AhR transactivity. Subsequent examination of the metabolic outputs of PA and PB in intestinal epithelial models using cell culture inserts suggested no significant impact on the transepithelial electrical resistance (TEER). Assessment of the expression of proinflammatory and anti-inflammatory cytokines, as well as AhR-related target genes in the Caco-2 cell monolayers indicated that PB's metabolic output upregulated most of the measured endpoints. This in vitro investigation evaluated the potential impact of four multispecies probiotic mixtures in the human colonic microbiota and identified a promising formulation comprising a combination of Bc. subtilis subsp. natto, Lv. brevis, and Lc. paracasei as a promising formulation for further study.
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Affiliation(s)
- Elizabeth Goya-Jorge
- Laboratory of Food Quality Management, Department of Food Sciences, FARAH - Veterinary Public Health, University of Liège, B43b, 4000, Liège, Belgium
| | - Irma Gonza
- Laboratory of Food Quality Management, Department of Food Sciences, FARAH - Veterinary Public Health, University of Liège, B43b, 4000, Liège, Belgium
| | - Pauline Bondue
- Laboratory of Food Quality Management, Department of Food Sciences, FARAH - Veterinary Public Health, University of Liège, B43b, 4000, Liège, Belgium
| | - Germain Druart
- Lacto Research Sprl, Rue Herman Méganck 21, 5032, Isnes-Gembloux, Belgium
| | - Mohamed Al-Chihab
- Lacto Research Sprl, Rue Herman Méganck 21, 5032, Isnes-Gembloux, Belgium
| | - Samiha Boutaleb
- Laboratory of Food Analysis, Department of Food Sciences, FARAH - Veterinary Public Health, University of Liège, B43b, 4000, Liège, Belgium
| | - Caroline Douny
- Laboratory of Food Analysis, Department of Food Sciences, FARAH - Veterinary Public Health, University of Liège, B43b, 4000, Liège, Belgium
| | - Marie-Louise Scippo
- Laboratory of Food Analysis, Department of Food Sciences, FARAH - Veterinary Public Health, University of Liège, B43b, 4000, Liège, Belgium
| | - Philippe Thonart
- Lacto Research Sprl, Rue Herman Méganck 21, 5032, Isnes-Gembloux, Belgium
| | - Véronique Delcenserie
- Laboratory of Food Quality Management, Department of Food Sciences, FARAH - Veterinary Public Health, University of Liège, B43b, 4000, Liège, Belgium.
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Trouvé-Peloux P, Champagnat F, Le Besnerais G, Druart G, Idier J. Performance model of depth from defocus with an unconventional camera. J Opt Soc Am A Opt Image Sci Vis 2021; 38:1489-1500. [PMID: 34612979 DOI: 10.1364/josaa.424621] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/12/2021] [Accepted: 08/24/2021] [Indexed: 06/13/2023]
Abstract
In this paper, we present a generic performance model able to evaluate the accuracy of depth estimation using depth from defocus (DFD). This model only requires the sensor point spread function at a given depth to evaluate the theoretical accuracy of depth estimation. Hence, it can be used for any (un)conventional system, using either one or several images. This model is validated experimentally on two unconventional DFD cameras, using either a coded aperture or a lens with chromatic aberration. Then, we use the proposed model for the end-to-end design of a 3D camera using an unconventional lens with chromatic aberration, for the specific use-case of small unmanned aerial vehicle navigation.
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