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Allenspach K, Sung CH, Ceron JJ, Peres Rubio C, Bourgois-Mochel A, Suchodolski JS, Yuan L, Kundu D, Colom Comas J, Rea K, Mochel JP. Effect of the Probiotic Bacillus subtilis DE-CA9 TM on Fecal Scores, Serum Oxidative Stress Markers and Fecal and Serum Metabolome in Healthy Dogs. Vet Sci 2023; 10:566. [PMID: 37756088 PMCID: PMC10537710 DOI: 10.3390/vetsci10090566] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/24/2023] [Revised: 08/14/2023] [Accepted: 08/22/2023] [Indexed: 09/28/2023] Open
Abstract
BACKGROUND There is increasing interest in the use of Bacillus species as probiotics since their spore-forming ability favors their survival in the acidic gastric environment over other probiotic species. The subsequent germination of B. subtilis to their vegetative form allows for their growth in the small intestine and may increase their beneficial effect on the host. B. subtilis strains have also previously been shown to have beneficial effects in humans and production animals, however, no reports are available so far on their use in companion animals. STUDY DESIGN The goal of this study was therefore to investigate the daily administration of 1 × 109 cfu DE-CA9TM orally per day versus placebo on health parameters, fecal scores, fecal microbiome, fecal metabolomics, as well as serum metabolomics and oxidative stress markers in ten healthy Beagle dogs in a parallel, randomized, prospective, placebo-controlled design over a period of 45 days. RESULTS DE-CA9TM decreased the oxidative status compared to controls for advanced oxidation protein products (AOPP), thiobarbituric acid reactive substances (TBARS) and reactive oxygen metabolites (d-ROMS), suggesting an antioxidant effect of the treatment. Fecal metabolomics revealed a significant reduction in metabolites associated with tryptophan metabolism in the DE-CA9TM-treated group. DE-CA9TM also significantly decreased phenylalanine and homocysteine and increased homoserine and threonine levels. Amino acid metabolism was also affected in the serum metabolome, with increased levels of urea and cadaverine, and reductions in N-acetylornithine in DE-CA9TM compared to controls. Similarly, changes in essential amino acids were observed, with a significant increase in tryptophan and lysine levels and a decrease in homocysteine. An increase in serum guanine and deoxyuridine was also detected, with a decrease in beta-alanine in the animals that ingested DE-CA9TM. CONCLUSIONS Data generated throughout this study suggest that the daily administration of 1 × 109 cfu of DE-CA9TM in healthy Beagle dogs is safe and does not affect markers of general health and fecal scores. Furthermore, DE-CA9TM administration had a potential positive effect on some serum markers of oxidative stress, and protein and lipid metabolism in serum and feces.
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Affiliation(s)
- Karin Allenspach
- Department of Veterinary Clinical Sciences, College of Veterinary Medicine, Iowa State University, Ames, IA 50010, USA;
| | - Chi-Hsuan Sung
- The Gastrointestinal Laboratory, Veterinary Medicine and Biomedical Sciences, Texas A&M University, College Station, TX 77843, USA; (C.-H.S.); (J.S.S.)
| | - Jose Joaquin Ceron
- Department of Clinical Pathology, College of Veterinary Medicine, University of Murcia, 30100 Murcia, Spain; (J.J.C.); (C.P.R.); (L.Y.)
| | - Camila Peres Rubio
- Department of Clinical Pathology, College of Veterinary Medicine, University of Murcia, 30100 Murcia, Spain; (J.J.C.); (C.P.R.); (L.Y.)
| | - Agnes Bourgois-Mochel
- Department of Veterinary Clinical Sciences, College of Veterinary Medicine, Iowa State University, Ames, IA 50010, USA;
| | - Jan S. Suchodolski
- The Gastrointestinal Laboratory, Veterinary Medicine and Biomedical Sciences, Texas A&M University, College Station, TX 77843, USA; (C.-H.S.); (J.S.S.)
| | - Lingnan Yuan
- Department of Clinical Pathology, College of Veterinary Medicine, University of Murcia, 30100 Murcia, Spain; (J.J.C.); (C.P.R.); (L.Y.)
| | - Debosmita Kundu
- Department of Biomedical Sciences, College of Veterinary Medicine, Iowa State University, Ames, IA 50010, USA; (D.K.); (J.P.M.)
| | - Joan Colom Comas
- ADM Cork H&W Limited, Bioinnovation Unit, Food Science Building, College Road, University College Cork, T12 Y337 Cork, Ireland; (J.C.C.); (K.R.)
| | - Kieran Rea
- ADM Cork H&W Limited, Bioinnovation Unit, Food Science Building, College Road, University College Cork, T12 Y337 Cork, Ireland; (J.C.C.); (K.R.)
| | - Jonathan P. Mochel
- Department of Biomedical Sciences, College of Veterinary Medicine, Iowa State University, Ames, IA 50010, USA; (D.K.); (J.P.M.)
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Garcia-Gonzalez N, Comas JC, Harris HMB, Strain C, Stanton C, Hill C, Corsetti A, Gahan CGM. Impact of Food Origin Lactiplantibacillus plantarum Strains on the Human Intestinal Microbiota in an in vitro System. Front Microbiol 2022; 13:832513. [PMID: 35450287 PMCID: PMC9016340 DOI: 10.3389/fmicb.2022.832513] [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] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/09/2021] [Accepted: 02/08/2022] [Indexed: 11/26/2022] Open
Abstract
We have previously isolated and characterized food-dwelling strains of Lactiplantibacillus (Lpb.) plantarum that are consumed naturally as part of the microbiota of table olives and raw milk cheeses. Despite being consumed at relatively high levels, the impact of such strains on the human gut microbiota is currently unclear. In the current study we evaluated the potential impact of food-dominant Lpb. plantarum strains on the human gut microbiota using a continuous fecal fermentation system. Daily inoculation of Lpb. plantarum strains led to significant, detectable levels in the fecal fermentation system. We examined the impact of the presence of Lpb. plantarum on the microbiota derived from two separate donors. For one donor, Lpb. plantarum increased alpha diversity and beta diversity. This was reflected in significant alterations in abundance of the unclassified genera, dominated by Enterobacteriaceae_unclass and Ruminococcaceae_unclass. The microbiota of the other donor was relatively unaffected following introduction of the Lpb. plantarum strains. Overall, the work describes the response of the human microbiota to the introduction of high levels of food-dominant Lpb. plantarum strains and indicates that the response may reflect interindividual differences between donor samples.
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Affiliation(s)
- Natalia Garcia-Gonzalez
- Faculty of Bioscience and Technology for Food, Agriculture and Environment, University of Teramo, Teramo, Italy.,School of Microbiology, University College Cork, Cork, Ireland
| | | | - Hugh M B Harris
- APC Microbiome Ireland, University College Cork, Cork, Ireland
| | - Conall Strain
- Teagasc Moorepark Food Research Centre, Fermoy, Ireland
| | | | - Colin Hill
- School of Microbiology, University College Cork, Cork, Ireland.,APC Microbiome Ireland, University College Cork, Cork, Ireland
| | - Aldo Corsetti
- Faculty of Bioscience and Technology for Food, Agriculture and Environment, University of Teramo, Teramo, Italy
| | - Cormac G M Gahan
- School of Microbiology, University College Cork, Cork, Ireland.,APC Microbiome Ireland, University College Cork, Cork, Ireland.,School of Pharmacy, University College Cork, Cork, Ireland
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Guerin E, Shkoporov AN, Stockdale SR, Comas JC, Khokhlova EV, Clooney AG, Daly KM, Draper LA, Stephens N, Scholz D, Ross RP, Hill C. Isolation and characterisation of ΦcrAss002, a crAss-like phage from the human gut that infects Bacteroides xylanisolvens. Microbiome 2021; 9:89. [PMID: 33845877 PMCID: PMC8042965 DOI: 10.1186/s40168-021-01036-7] [Citation(s) in RCA: 38] [Impact Index Per Article: 12.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/21/2020] [Accepted: 02/12/2021] [Indexed: 05/04/2023]
Abstract
BACKGROUND The gut phageome comprises a complex phage community of thousands of individual strains, with a few highly abundant bacteriophages. CrAss-like phages, which infect bacteria of the order Bacteroidales, are the most abundant bacteriophage family in the human gut and make an important contribution to an individual's core virome. Based on metagenomic data, crAss-like phages form a family, with four sub-families and ten candidate genera. To date, only three representatives isolated in pure culture have been reported: ΦcrAss001 and two closely related phages DAC15 and DAC17; all are members of the less abundant candidate genus VI. The persistence at high levels of both crAss-like phage and their Bacteroidales hosts in the human gut has not been explained mechanistically, and this phage-host relationship can only be properly studied with isolated phage-host pairs from as many genera as possible. RESULTS Faeces from a healthy donor with high levels of crAss-like phage was used to initiate a faecal fermentation in a chemostat, with selected antibiotics chosen to inhibit rapidly growing bacteria and selectively enrich for Gram-negative Bacteroidales. This had the objective of promoting the simultaneous expansion of crAss-like phages on their native hosts. The levels of seven different crAss-like phages expanded during the fermentation, indicating that their hosts were also present in the fermenter. The enriched supernatant was then tested against individual Bacteroidales strains isolated from the same faecal sample. This resulted in the isolation of a previously uncharacterised crAss-like phage of candidate genus IV of the proposed Alphacrassvirinae sub-family, ΦcrAss002, that infects the gut commensal Bacteroides xylanisolvens. ΦcrAss002 does not form plaques or spots on lawns of sensitive cells, nor does it lyse liquid cultures, even at high titres. In keeping with the co-abundance of phage and host in the human gut, ΦcrAss002 and Bacteroides xylanisolvens can also co-exist at high levels when co-cultured in laboratory media. CONCLUSIONS We report the isolation and characterisation of ΦcrAss002, the first representative of the proposed Alphacrassvirinae sub-family of crAss-like phages. ΦcrAss002 cannot form plaques or spots on bacterial lawns but can co-exist with its host, Bacteroides xylanisolvens, at very high levels in liquid culture without impacting on bacterial numbers. Video abstract.
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Affiliation(s)
- Emma Guerin
- APC Microbiome Ireland, University College Cork, Cork, Ireland
- School of Microbiology, University College Cork, Cork, Ireland
| | | | | | | | | | - Adam G Clooney
- APC Microbiome Ireland, University College Cork, Cork, Ireland
| | - Karen M Daly
- APC Microbiome Ireland, University College Cork, Cork, Ireland
| | | | - Niamh Stephens
- Conway Institute of Biomolecular and Biomedical Research, University College Dublin, Belfield, Dublin 4, Ireland
| | - Dimitri Scholz
- Conway Institute of Biomolecular and Biomedical Research, University College Dublin, Belfield, Dublin 4, Ireland
| | - R Paul Ross
- APC Microbiome Ireland, University College Cork, Cork, Ireland
- School of Microbiology, University College Cork, Cork, Ireland
- Teagasc Food Research Centre, Moorepark, Fermoy, Co. Cork, Ireland
| | - Colin Hill
- APC Microbiome Ireland, University College Cork, Cork, Ireland.
- School of Microbiology, University College Cork, Cork, Ireland.
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