399 results on '"Probiotique"'
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2. Microbiotes génitaux et grossesse.
- Author
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Bohbot, Jean-Marc
- Abstract
Copyright of Actualités Pharmaceutiques is the property of Elsevier B.V. and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
- Published
- 2023
- Full Text
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3. Isolation and characterization of the actinomycete, Nocardiopsis, from Haizhou Bay, and its application as a probiotic for Exopalaemon carinicauda (Holthuis, 1950) (Caridea, Palaemonidae).
- Author
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Shen, Shanrui, Mi, Xiaoyan, Shen, Qin, Chen, Jing, Gao, Huan, and Lai, Xiaofang
- Subjects
- *
DIGESTIVE enzymes , *PROBIOTICS , *VIBRIO anguillarum , *ACID phosphatase , *WEIGHT gain , *SUPEROXIDE dismutase , *LYSOZYMES - Abstract
Actinomycetes, as the main producers of a variety of active metabolites and enzymes, have received extensive attention in aquaculture. An actinomycete had been isolated from Haizhou Bay and been identified by morphological analysis and 16S rRNA sequencing. Results showed that the actinomycete had the highest similarity (99.65%) with Nocardiopsis sp. and was named strain E10. Strain E10 produced an exo-enzyme with proteinase effect that showed strong antibacterial activity against Vibrio anguillarum. This strain E10 was tested as a probiotic for the culture of Exopalaemon carinicauda. After having been fed with a diet supplemented with strain E10 for 30 days, the final body weight (Wt), weight gain rate (WGR), special growth rate (SGR), survival rate (SR) and digestive enzymes (chymotrypsin, α -amylase and lipase) of E. carinicauda in all experimental groups showed no significant differences (P > 0.05). However, the antioxidant enzymes (total superoxide dismutase, catalase and peroxidase) and the non-specific immune-related enzymes (acid phosphatase, alkaline phosphatase and lysozyme) in the treatment groups increased significantly (P < 0.05) compared with the control group. The cumulative mortality of the treatment groups (35.56% in 5 × 109 CFU/100 g) was significantly lower than that of the control treatment (73.33%) (P < 0.05) post challenge with V. anguillarum for 14 days. The results indicated that strain E10 had no significant effect on the growth, but a significant improvement on the immunity of E. carinicauda. This study provides the data for ecological aquaculture of E. carinicauda. [ABSTRACT FROM AUTHOR]
- Published
- 2023
- Full Text
- View/download PDF
4. Le rôle complexe du microbiote cutané dans la cicatrisation des plaies.
- Author
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Bonté, Frédéric, Pasamon, Mathilde, and Desmoulière, Alexis
- Abstract
Copyright of Actualités Pharmaceutiques is the property of Elsevier B.V. and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
- Published
- 2022
- Full Text
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5. Beneficial metabolic effects of probiotic supplementation in dams and offspring following hypercaloric diet during pregnancy.
- Author
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Arbex, Priscila M., Seehusen, Frauke, Morais, Ana P., Guerra, Martha O., and Peters, Vera M.
- Subjects
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DIET , *DIETARY supplements , *LIVER analysis , *PREGNANCY , *PROBIOTICS , *ENERGY consumption - Abstract
The present study aims to evaluate the influence of a hypercaloric diet (HC) diet on the inflammatory and metabolic parameters of mice and the protective effect of probiotics, as well as the possible effects on the offspring. The control groups (C, CP, and CPP) received the normocaloric diet – Nuvilab Quimtia® – 3.86 kcal/kg. The hypercalorie groups (HC, HCP and HCPP) received the diet accordingly – PragSoluções® – 5.98 kcal/kg. The control pregnant probiotic (CPP) and the hypercaloric pregnant probiotic group (HCPP) received the corresponding diet plus probiotics during pregnancy. We carried out metabolic and biometric parameters, inflammation markers, and histological analyses of the liver. An increase in the following parameters was found in the F0: adiposity, leptin, energy efficiency coefficient, lower insulin decay rate, and hepatic lipidosis. Interestingly, there was no deposition of fat in the liver of the group fed with hypercaloric died and treated with probiotics, thus not differing from the control-diet group. Maternal overeating promoted altered metabolic parameters of both dams and offspring, demonstrating the metabolic effects of a hypercaloric diet on the F1; conversely, probiotics had beneficial effects in the F1. Deleterious effects of a fructose- and lipid-rich diet may be transmitted to the F1; however, probiotic supplementation seems to counteract these consequences. [ABSTRACT FROM AUTHOR]
- Published
- 2022
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- View/download PDF
6. Allergies alimentaires et probiotiques.
- Author
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Rousseau, Yaëlle
- Abstract
Le microbiote intestinal joue un rôle dans la tolérance immunitaire. En cas de dysbiose, il se produit une rupture de tolérance qui favorise l'allergie alimentaire. En prévention, il est possible d'agir sur la composition du microbiote intestinal grâce à une supplémentation en probiotiques. The intestinal microbiota plays a role in immune tolerance. In dysbiosis, a breakdown in tolerance occurs, promoting food allergy. In order to prevent it, it is possible to act on the intestinal microbiota composition by probiotic supplementation. [ABSTRACT FROM AUTHOR]
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- 2022
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7. Le rôle du microbiote en santé humaine.
- Author
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Lecerf, Jean-Michel
- Abstract
Grâce aux récentes recherches, le microbiote intestinal est mieux connu. De multiples facteurs déterminent sa composition et son évolution au cours du temps. Il est impliqué dans de nombreuses fonctions de l'organisme et dans diverses pathologies. Thanks to recent research, the gut microbiota is better known. Multiple factors have determined its composition and its evolution over time. It is involved in many functions of the body and in various pathologies. [ABSTRACT FROM AUTHOR]
- Published
- 2021
- Full Text
- View/download PDF
8. ETUDE DU POTENTIEL PROBIOTIQUE DES BACTERIES LACTIQUES ISOLEES A PARTIR D'Artemia sp.
- Author
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Chahrazed, BOUACHA, Souhila, ALOUACHE, Amine, BENKHALED, and Mohamed, ZAIDAT Lotfi
- Abstract
Copyright of Algerian Journal of Arid Environment (AJAE) is the property of University of Kasdi Merbah Ouargla and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
- Published
- 2021
9. Maladie de Parkinson, nutrition et micronutrition.
- Author
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Coudron, Olivier
- Abstract
Si l'alimentation est peu impliquée dans le déclenchement de la maladie de Parkinson, elle semble avoir un rôle important dans son évolution. Le modèle méditerranéen convient particulièrement aux patients parkinsoniens. En revanche, une attention particulière doit être portée aux apports protéiques, notamment aux stades avancés. Certains compléments peuvent être proposés, à l'instar des acides gras oméga 3, de la vitamine D et de quelques probiotiques. Although diet is not a major contributor to the onset of Parkinson's disease, it seems to play an important role in its progression. The Mediterranean model is particularly suitable for Parkinson's patients. On the other hand, particular attention must be paid to protein intake, especially in the advanced stages. Certain supplements can be proposed, such as omega 3 fatty acids, vitamin D and some probiotics. [ABSTRACT FROM AUTHOR]
- Published
- 2020
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10. Microbiote intestinal et pathologies oculaires
- Author
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Bono, Amir, Aix-Marseille Université - Faculté de pharmacie (AMU PHARM), Aix Marseille Université (AMU), and Véronique Andrieu
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Rétinopathie diabétique ,Ophtalmologie ,Dégénérescence maculaire liée à l’âge ,Microbiote intestinal ,Sécheresse oculaire ,[SDV]Life Sciences [q-bio] ,Probiotique ,Uvéite ,Pathologies oculaires ,[SDV.SP]Life Sciences [q-bio]/Pharmaceutical sciences - Abstract
Le microbiote intestinal joue un rôle central pour son hôte. Il participe à la protection de l’hôte via sa fonction barrière, le métabolisme des nutriments, la production de neurotransmetteurs ainsi que le développement et la maturation du système immunitaire. Les pathologies oculaires sont multifactorielles et présentent des composantes environnementales, génétiques, allergiques, métaboliques, inflammatoires, auto-immunes et liées à la senescence. Des études ont été réalisées pour évaluer l’incidence du microbiote intestinal sur l’œil. Cette thèse discute de l’existence d’un axe microbiote-intestin-œil. Les études existantes suggèrent qu’un déséquilibre du microbiote intestinal jouerait un rôle dans la survenue et la progression de pathologies oculaires du bord palpébral, de la surface oculaire, de l’uvée et de la rétine. La dysbiose intestinale entrainerait une perturbation de la barrière intestinale et une augmentation de la perméabilité de cette dernière. La translocation des bactéries intestinales et de leurs métabolites pro-inflammatoires dans le système circulatoire et le système lymphatique déclencherait une cascade immunitaire se répercutant sur les tissus oculaires. Les modulations du système immunitaire intestinal entraineraient des atteintes au niveau des tissus oculaires via les tissus lymphatiques. La modulation du microbiote intestinal pourrait donc être une nouvelle cible dans la prise en charge globale des pathologies oculaires via l’utilisation de probiotiques.
- Published
- 2023
11. Place des pré- et probiotiques dans la stratégie thérapeutique.
- Author
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Malbos, Damien
- Abstract
Les probiotiques et les prébiotiques posséderaient de multiples vertus positives en santé humaine. L'équipe officinale est très souvent sollicitée pour prodiguer des conseils sur leur utilisation, principalement dans le secteur de la gastro-entérologie. Probiotics and prebiotics are believed to have multiple positive benefits for human health. The pharmaceutical team is often asked to provide advice on their use, mainly in the field of gastroenterology. [ABSTRACT FROM AUTHOR]
- Published
- 2021
- Full Text
- View/download PDF
12. Stratégies de prévention de la récidive post-opératoire après résection iléo-caecale pour maladie de Crohn dans le modèle du rat transgénique HLA-B27
- Author
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Valibouze, Caroline, Institute for Translational Research in Inflammation - U 1286 (INFINITE (Ex-Liric)), Institut National de la Santé et de la Recherche Médicale (INSERM)-Université de Lille-Centre Hospitalier Régional Universitaire [Lille] (CHRU Lille), Université de Lille, and Philippe Zerbib
- Subjects
Crohn's disease ,Recurrence ,Probiotique ,Escherichia coli ,Récidive ,Saccharomyces cerevisiae ,Probiotic ,Colorectal Surgery ,Maladie de Crohn ,[SDV.MHEP]Life Sciences [q-bio]/Human health and pathology ,Chirurgie colo-Rectale - Abstract
Despite the constant development of new therapies, surgery retains a major role in Crohn's disease (CD) and the occurrence of postoperative recurrence (POR) is struggling to be slowed down. Prevention of POR is therefore an essential issue in the management of CD patients. Indeed, almost all of the operated patients present with an endoscopic, then clinical POR and up to 20% of the patients will be operated on for a second intestinal resection. Dysbiosis plays a major role in CD recurrence, and over the past twenty years, many studies have highlighted the role of adherent and invasive Escherichia coli (AIEC) in the occurrence of POR and the severity of the lesions. The treatment of patients with prolonged antibiotic therapy cannot be considered due to significant side effects, this is why anti-bacterial targeted therapy strategies represent a new area of research. Saccharomyces cerevisiae (S. cerevisiae) CNCM I-3856 is a probiotic yeast whose safety and efficacy in the symptoms of irritable bowel disease has already been demonstrated in clinical studies. The first part of our study aimed to investigate the preventive role of S. cerevisiae on AIEC-induced POR after ileocecal resection (ICR) in HLA-B27 transgenic (Tg) mouse model mimicking CD. We have demonstrated a significant prevention of AIEC-induced POR in Tg rats orally challenged with S. cerevisiae CNCM I-3856, in association with a significant decrease in the severity of macroscopic and histological lesions. We found that the level of adherent and luminal flora colonization by AIECs was correlated with the POR and that the administration of S. cerevisiae CNCM I-3856 was associated with a decrease in the persistence of luminal and adherent AIECs, due to a competitive anti-adhesion mechanism. In addition, stimulation of the production of anti-inflammatory cytokine IL-10 was also observed in the Tg rats receiving the treatment with S. cerevisiae CNCM I-3856, as well as an inhibition of the local AIEC-induced production of IL-17 and IL-23.The second part of this work consisted in studying the impact of oral administration of Tofacitinib, a Janus Kinase inhibitor, in the prevention of POR after ICR in the Tg HLA-B27 rat model. A decrease in macroscopic, histological and endoscopic lesions was demonstrated during treatment with Tofacitinib in comparison with control Tg rats receiving PBS.S. cerevisiae CNCM I-3856 and Tofacitinib seem to represent new perspectives for the management of POR in CD patients.; Malgré le développement constant de nouvelles thérapeutiques, la chirurgie garde un rôle majeur dans la maladie de Crohn (MC) et la survenue d'une récidive post-opératoire (RPO) peine à être freinée. La prévention de la RPO est donc un enjeu essentiel dans la prise en charge des patients atteints de MC. En effet, la quasi-totalité des patients opérés présentent une RPO endoscopique, puis clinique et on estime que jusqu'à 20% des patients seront opérés d'une seconde résection intestinale. La dysbiose joue un rôle majeur dans cette récidive, et, depuis une vingtaine d'années, nombre d'études ont mis en lumière le rôle des Escherichia coli adhérents et invasifs (AIEC) dans la survenue de la RPO et la sévérité des lésions. Le traitement des patients par une antibiothérapie prolongée ne peut être envisagé en raison d'effets secondaires notables ; dans ce contexte les stratégies de thérapies ciblées anti-bactériennes représentent une nouvelle piste thérapeutique. Saccharomyces cerevisiae (S. cerevisiae) CNCM I-3856 est une levure probiotique dont l'innocuité, et l'efficacité dans les symptômes des troubles fonctionnels intestinaux, ont déjà été démontrées chez l'homme. La première partie de notre étude visait à étudier le rôle préventif de S. cerevisiae sur la RPO AIEC-induite après résection iléo-caecale (RIC) dans un modèle murin transgénique (Tg) HLA-B27 mimant la MC. Nous avons mis en évidence une prévention significative de la RPO AIEC-induite lors du traitement oral des rats Tg par S. cerevisiae CNCM I-3856, en association avec une diminution significative de la sévérité des lésions macroscopiques et histologiques. Nous avons constaté que le niveau de colonisation de la flore adhérente et luminale par les AIEC était corrélé à la RPO, et que l'administration de S. cerevisiae CNCM I-3856 était associée à une diminution de la persistance des AIEC luminaux et adhérents, grâce à un mécanisme compétitif anti-adhésif. Par ailleurs, on observait également une stimulation de la production de la cytokine anti-inflammatoire IL-10 chez les rats Tg recevant le traitement par S. cerevisiae CNCM I-3856, ainsi qu'une inhibition de la production locale d'IL-17 et d'IL-23 induite par les AIEC.La seconde partie du travail a consisté à étudier l'impact de l'administration orale de Tofacitinib, une molécule inhibitrice de Janus kinase, dans la prévention de la RPO après RIC dans le modèle du rat Tg HLA-B27. Il a été mis en évidence une diminution des lésions macroscopiques, histologiques et endoscopiques lors du traitement par Tofacitinib en comparaison avec les rats Tg contrôles recevant du PBS.S. cerevisiae CNCM I-3856 et le Tofacitinib semblent pouvoir représenter de nouvelles perspectives de prise en charge de la RPO chez les patients atteints de MC.
- Published
- 2022
13. Le microbiote, l'intestin et le cerveau.
- Author
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Boudin, H., Gonzales, J., Derkinderen, P., and Neunlist, M.
- Abstract
Copyright of Phytothérapie is the property of John Libbey Eurotext Ltd. and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
- Published
- 2018
- Full Text
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14. Liens entre microbiote intestinal et comportement de type anxiodépressif chez le rongeur.
- Author
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Rabot, S., Naudon, L., and Daugé, V.
- Abstract
Copyright of Phytothérapie is the property of John Libbey Eurotext Ltd. and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
- Published
- 2018
- Full Text
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15. Impact du probiotique Pediococcus acidilactici MA18/5M sur l’exclusion microbienne des Enterobacteriaceae et des gènes de résistance présents chez des porcs canulés à l’iléon
- Author
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Poulin-Laprade, Dominic, Burrus, Vincent, Turcotte, Annie, Talbot, Guylaine, Poulin-Laprade, Dominic, Burrus, Vincent, Turcotte, Annie, and Talbot, Guylaine
- Published
- 2022
16. Microbiote et dépression : une piste thérapeutique prometteuse.
- Author
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Fond, Guillaume and Boyer, Laurent
- Abstract
Le microbiote intestinal est un champ thérapeutique en plein essor depuis dix ans, de par l'avancée des progrès technologiques et les découvertes de la recherche fondamentale et clinique. Dans cet article, nous retraçons un bref historique des découvertes thérapeutiques dans les troubles mentaux sévères ainsi que des arguments actuels pour développer les thérapies orientées sur le microbiote dans la dépression majeure, le trouble psychiatrique le plus fréquent et avec l'impact le plus lourd sur la santé des populations. There is increasing evidence towards an interaction between the intestinal microbiota, gut, and central nervous system. Based on this compelling body of evidence, there is growing enthusiasm for research focused on translating this emerging association into novel therapies for psychiatric illnesses. The links between gut microbiota disturbances and brain dysfunction have clearly been demonstrated in rodents. Researchers have proven that gut microbiota plays a major role in the central nervous system development, and that germ-free mice (mice born by c-section and without microbiota) do develop severe behavioral disorders mimicking MD with social withdrawal, self-neglect, eating and sleep disorders, anxiety, as well as hopelessness. A recent study has demonstrated that this major depression phenotype could be transferable from one mouse to another through microbiota transplantation. Moreover, microbiota dysfunctions have been associated with peripheral immune inflammation as well as neuro-inflammation (also called microglia activation). Subjects with irritable bowel syndrome (IBS) display higher rates of comorbid MD. The gut microbiota of patients with Major Depression (MD) to be similar to that of patients with IBS-diarrhea subtype (IBS-D) in that sense that their gut microbiota was less diverse than that from healthy control samples, with similar abundances of alterations (high proportions of Bacteroides and Prevotella). IBS is currently considered to be the paradigmatic microbiota-related disorder. Another study found the MD groups exhibited increased levels of Enterobacteriaceae and Alistipes (nocive bacteria), though reduced levels of Faecalibacterium (healthy bacteria). In this study, a negative correlation was likewise observed between Faecalibacterium and severity of depressive symptoms. Alpha gut microbiota diversity within samples was associated with depressive severity in two studies. Another study found altered microbiota signatures in the gut microbiota of MD patients, including Bacteroidetes , Proteobacteria , Firmicutes , and Actinobacteria phyla and, more specifically, 16 bacterial families. Probiotics are microorganisms that, when consumed, contribute to the host gut microbial flora, thereby producing beneficial effects on health. Among several possibilities for MD treatment that have garnered substantial interest in recent times, probiotics hold particular appeal. The effectiveness of probiotic administration in MD constitutes a strong evidence for developing microbiota-orientated treatments in this indication. Probiotics have yielded medium-to-large significant effects in the setting of depression (d = −.73 [95% CI = −1.02; −.44]). Whereas the first study evaluating the therapeutic efficacy of prebiotics or probiotics on depression or anxiety was conducted over a decade ago, approximately half of all existing studies were published over the past two years, reflecting the rapidly growing interest in this area. Duration of probiotic administration across trials ranged from 8 days to 45 weeks, whereas it is still unclear if the effect is maintained following probiotic discontinuation. [ABSTRACT FROM AUTHOR]
- Published
- 2019
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17. La fermentation comme moyen de rendre un aliment fonctionnel
- Author
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Jan, Gwénaël, Gagnaire, Valérie, and Giboulot, Anne
- Subjects
[SDV.AEN] Life Sciences [q-bio]/Food and Nutrition ,fonctionnalité alimentaire ,bactérie lactique ,aliment fermenté ,[SDV.IDA] Life Sciences [q-bio]/Food engineering ,probiotique ,fermentation ,produit laitier - Published
- 2022
18. Impact of storage on the functional characteristics of a fermented cereal product with probiotic potential, containing fruits and phytosterols
- Author
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J.E. Blajman, Adriana Maria Descalzo, María Verónica Baroni, Roxana Páez, Mariana Soledad Lingua, Claudie Dhuique-Mayer, Magali Gies, and Adrien Servent
- Subjects
Caroténoïde ,Analytical Chemistry ,Whey protein isolate ,law.invention ,Probiotic ,Lipid oxidation ,law ,Cereal product ,Food science ,Q04 - Composition des produits alimentaires ,Carotenoid ,Additif alimentaire ,Phytostérol ,Propriété physicochimique ,chemistry.chemical_classification ,biology ,Amidon de maïs ,Probiotics ,Probiotique ,food and beverages ,Phytosterols ,General Medicine ,Yogurt ,Antioxydant ,Antioxidant capacity ,chemistry ,Polyphenol ,Fruit ,Succédané d'aliment pour homme ,Fermentation ,biology.protein ,Edible Grain ,Food Science - Abstract
The aim of this work was to study the changes in the functional characteristics of a fermented maize product containing fruits, and enriched with phytosterols. Functional characteristics (natural antioxidants and phytosterols content, in vitro antioxidant capacity and probiotic viability), lipid oxidation, and physicochemical parameters were investigated during 4 weeks of storage at 4 °C. The differences between one formulation elaborated with semi-skimmed powdered milk (Basic Product) and another with whey protein isolate (WPI Product) were evaluated. The content of polyphenols, carotenoids and tocopherols remained unchanged during the storage of both formulations. These compounds increased the antioxidant capacity in both products compared to the control formulation (without fruits), which was displayed along the whole storage period. The doses of phytosterols and the probiotic potential were maintained to the end of the storage period for both formulations. Basic and WPI products represent novel foods with desirable functional characteristics preserved during commercial storage.
- Published
- 2022
19. Probiotic Intake and Inflammation in Patients With Chronic Kidney Disease: An Analysis of the CKD-REIN Cohort
- Author
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Wagner, Sandra, Merkling, Thomas, Metzger, Marie, Koppe, Laetitia, Laville, Maurice, Boutron-Ruault, Marie-Christine, Frimat, Luc, Combe, Christian, Massy, Ziad, Stengel, Bénédicte, Fouque, Denis, ROSSI, Sabine, Centre d'investigation clinique [Nancy] (CIC), Centre Hospitalier Régional Universitaire de Nancy (CHRU Nancy)-Institut National de la Santé et de la Recherche Médicale (INSERM)-Université de Lorraine (UL), Cardiovascular and Renal Clinical Trialists [Vandoeuvre-les-Nancy] (INI-CRCT), Institut Lorrain du Coeur et des Vaisseaux Louis Mathieu [Nancy], Défaillance Cardiovasculaire Aiguë et Chronique (DCAC), French-Clinical Research Infrastructure Network - F-CRIN [Paris] (Cardiovascular & Renal Clinical Trialists - CRCT ), Centre de recherche en épidémiologie et santé des populations (CESP), Université de Versailles Saint-Quentin-en-Yvelines (UVSQ)-Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Hôpital Paul Brousse-Institut National de la Santé et de la Recherche Médicale (INSERM)-Université Paris-Saclay, Université de Versailles Saint-Quentin-en-Yvelines (UVSQ), Hospices Civils de Lyon (HCL), Cardiovasculaire, métabolisme, diabétologie et nutrition (CarMeN), Université Claude Bernard Lyon 1 (UCBL), Université de Lyon-Université de Lyon-Hospices Civils de Lyon (HCL)-Institut National de la Santé et de la Recherche Médicale (INSERM)-Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement (INRAE), Adaptation, mesure et évaluation en santé. Approches interdisciplinaires (APEMAC), Université de Lorraine (UL), Service de Néphrologie [CHRU Nancy], Centre Hospitalier Régional Universitaire de Nancy (CHRU Nancy), Université Paris Descartes - Paris 5 (UPD5), Bioingénierie tissulaire (BIOTIS), Université de Bordeaux (UB)-Institut National de la Santé et de la Recherche Médicale (INSERM), Service de Néphrologie-transplantation-dialyse [Bordeaux], CHU Bordeaux [Bordeaux], and Hôpital Ambroise Paré [AP-HP]
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[SDV.MHEP] Life Sciences [q-bio]/Human health and pathology ,chronique un rein maladie ,inflammation ,protéine C-réactive ,épidémiologie ,Yaourt ,probiotique ,[SDV.MHEP]Life Sciences [q-bio]/Human health and pathology - Abstract
Background and Aims Little is known about the effects of probiotics on inflammation in the context of chronic kidney disease (CKD). We investigated the association between probiotic intake and inflammation in patients with moderate-to-advanced CKD. Methods We performed a cross-sectional study of 888 patients with stage 3–5 CKD and data on serum C-reactive protein (CRP) levels and a concomitant food frequency questionnaire. We estimated the odds ratios (ORs) [95% confidence interval (CI)] for various CRP thresholds (>3, >4, >5, >6, and >7 mg/L) associated with three intake categories (no yoghurt, ordinary yoghurt, and probiotics from yoghurts or dietary supplements) and two frequency categories (daily or less than daily). Results The 888 study participants (median age: 70; men: 65%) had a median estimated glomerular filtration rate of 28.6 mL/min/1.73 m 2 and a median [interquartile range] CRP level of 3.0 [1.6, 7.0] mg/L. Fifty-seven percent consumed ordinary yoghurt and 30% consumed probiotic yoghurt. The median intake frequency for yoghurt and probiotics was 7 per week. Relative to participants not consuming yoghurt, the ORs [95% CI] for CRP > 6 or >7 mg/L were significantly lower for participants consuming ordinary yoghurt (0.58 [0.37, 0.93] and 0.57 [0.35, 0.91], respectively) and for participants consuming probiotics (0.54 [0.33, 0.9] and 0.48 [0.28, 0.81], respectively), independently of age, sex, body mass index, CKD stage, cardiovascular disease, and fibre, protein and total energy intakes. The ORs were not significantly lower for CRP thresholds >3, >4, and >5 mg/L and were not significantly greater in daily consumers than in occasional consumers. Conclusion We observed independent associations between the consumption of yoghurt or probiotics and lower levels of inflammation in patients with CKD. There was no evidence of a dose-effect relationship. Clinical Trial Registration [ https://www.clinicaltrials.gov/ct2/show/NCT03381950 ], identifier [NCT03381950]., Contexte et objectifs : On sait peu de choses sur les effets des probiotiques surinflammation dansle contexte dechronique un rein maladie(MRC). Nous avons étudié l'association entreprobiotique admissionetinflammation dans les patientsavec un niveau modéré à avancéMRC. Méthodes : Nous avons réalisé une étude transversale de 888les patientsavec stade 3–5MRCet des données sur les taux sériques de protéine C-réactive (CRP) et un questionnaire sur la fréquence des aliments concomitants. Nous avons estimé les rapports de cotes (OR) [intervalle de confiance (IC) à 95 %] pour divers seuils de CRP (> 3, > 4, > 5, > 6 et > 7 mg/L) associés à troisadmissioncatégories (pas de yaourt, yaourt ordinaire et probiotiques issus de yaourts ou de compléments alimentaires) et deux catégories de fréquence (quotidiennement ou moins d'une fois par jour). Résultats : Les 888 participants à l'étude (âge médian : 70 ; hommes : 65 %) avaient un taux de filtration glomérulaire médian estimé de 28,6 mL/min/1,73 m 2 et un taux médian [écart interquartile] de CRP de 3,0 [1,6, 7,0] mg /L. Cinquante-sept pour cent consommaient du yaourt ordinaire et 30 % consommaientprobiotiqueYaourt. La médianeadmissionla fréquence pour le yaourt et les probiotiques était de 7 par semaine. Par rapport aux participants ne consommant pas de yaourt, les OR [IC à 95 %] pour la CRP > 6 ou > 7 mg/L étaient significativement plus faibles pour les participants consommant du yaourt ordinaire (0,58 [0,37, 0,93] et 0,57 [0,35, 0,91], respectivement) et pour les participants consommant des probiotiques (0,54 [0,33, 0,9] et 0,48 [0,28, 0,81], respectivement), indépendamment de l'âge, du sexe, de l'indice de masse corporelle,MRCstade, cardiovasculairemaladie, et les apports en fibres, en protéines et en énergie totale. Les OR n'étaient pas significativement inférieurs pour les seuils de CRP > 3, > 4 et > 5 mg/L et n'étaient pas significativement supérieursdansconsommateurs quotidiens quedansconsommateurs occasionnels. Conclusion : Nous avons observé des associations indépendantes entre la consommation de yaourt ou de probiotiques et des niveaux inférieurs deinflammation dans les patientsavecMRC. Il n'y avait aucune preuve d'une relation dose-effet. Enregistrement des essais cliniques : [https://www.clinicaltrials.gov/ct2/show/NCT03381950], identifiant [NCT03381950]. Copyright © 2022 Wagner, Merkling, Metzger, Koppe, Laville, Boutron-Ruault, Frimat, Combe, Massy, Stengel et Fouque.
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- 2022
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20. Evaluation of prebiotic and probiotic in diets comprising rice bran on heat stressed broilers.
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SEIFI, S., KHOSHBAKHT, R., SAYRAFI, R., HASHEMI, A., GILANI, A., GOUDARZI, B., and MEHDINEZHAD, H.
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PREBIOTICS ,PROBIOTICS ,BROILER chickens ,CHICKS ,PHYSIOLOGICAL effects of heat ,DIET ,RICE bran - Abstract
Copyright of Revue de Médecine Vétérinaire is the property of Ecole Nationale Veterinaire de Toulouse and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
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- 2017
21. Growth performance, gastrointestinal microbial activity, and immunological response of piglets receiving microencapsulated Enterococcus faecalis CG1.0007 and enzyme complex after an oral challenge with Escherichia coli (K88).
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Chen, H.S., Velayudhan, D.E., Li, A., Feng, Z., Liu, D., Yin, Y.L., Nyachoti, C.M., and Plaizier, J.
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GUT microbiome ,ENTEROCOCCUS faecalis ,SWINE growth ,ESCHERICHIA coli ,IMMUNE response - Abstract
Copyright of Canadian Journal of Animal Science is the property of Canadian Science Publishing and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
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- 2016
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22. Aliments fermentés : une diversité de bénéfices santé potentiels encore peu documentés
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Thierry, Anne, Valence-Bertel, Florence, Science et Technologie du Lait et de l'Oeuf (STLO), AGROCAMPUS OUEST, Institut national d'enseignement supérieur pour l'agriculture, l'alimentation et l'environnement (Institut Agro)-Institut national d'enseignement supérieur pour l'agriculture, l'alimentation et l'environnement (Institut Agro)-Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement (INRAE), Elsevier Masson, Jean-Michel Lecerf, Nathalie Delzenne, and Thierry, Anne
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[SDV] Life Sciences [q-bio] ,[SDV.AEN] Life Sciences [q-bio]/Food and Nutrition ,nutrition ,Dysbiose ,microbiote ,[SDV]Life Sciences [q-bio] ,aliment fermenté ,neurologie ,santé humaine ,digestion ,probiotique ,immunité ,[SDV.AEN]Life Sciences [q-bio]/Food and Nutrition - Abstract
International audience; Les aliments fermentés représentent une part importante de la diète. Ils sont issus de la fermentation spontanée ou dirigée de nombreuses matières premières végétales ou animales et représentent une très grande variété de produits. Ils font l’objet d’un regain d’attention sociétal, du fait notamment des propriétés santé qui leur sont attribuées. Ces bénéfices santé potentiels peuvent reposer sur l’apport des microorganismes eux-mêmes - dont beaucoup atteignent vivants l’intestin - et/ou sur l’apport de métabolites spécifiques issus de l’activité de ces microorganismes. Des études interventionnelles et des études de cohortes récentes démontrent des effets bénéfiques de la consommation d’aliments fermentés. De nombreux efforts de recherche sont cependant nécessaires pour comprendre les mécanismes impliqués et donner à ce groupe d’aliments particuliers la place qui leur revient.
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- 2021
23. Probiotiques et allergie.
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Evrard, B., Bonnet, B., Jubelin, G., and Bernalier-Donadille, A.
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- 2018
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24. Incorporation and stability of carotenoids in a functional fermented maize yogurt-like product containing phytosterols
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Magali Gies, Claudie Dhuique-Mayer, Adriana Maria Descalzo, Adrien Servent, Démarche intégrée pour l'obtention d'aliments de qualité (UMR Qualisud), Centre de Coopération Internationale en Recherche Agronomique pour le Développement (Cirad)-Institut national d’études supérieures agronomiques de Montpellier (Montpellier SupAgro), Institut national d'enseignement supérieur pour l'agriculture, l'alimentation et l'environnement (Institut Agro)-Institut national d'enseignement supérieur pour l'agriculture, l'alimentation et l'environnement (Institut Agro)-Université de La Réunion (UR)-Université de Montpellier (UM)-Avignon Université (AU)-Centre international d'études supérieures en sciences agronomiques (Montpellier SupAgro)-Université Montpellier 2 - Sciences et Techniques (UM2)-Université Montpellier 1 (UM1), and Instituto Nacional de Tecnología Agropecuaria (INTA)
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0106 biological sciences ,maïs ,[SDV]Life Sciences [q-bio] ,Pasteurization ,Biomass ,01 natural sciences ,law.invention ,Probiotic ,chemistry.chemical_compound ,0404 agricultural biotechnology ,Starter ,Q02 - Traitement et conservation des produits alimentaires ,law ,010608 biotechnology ,Carotène ,Yaourt ,Food science ,Q04 - Composition des produits alimentaires ,Carotenoid ,2. Zero hunger ,chemistry.chemical_classification ,Manufacturing process ,Chemistry ,Probiotique ,04 agricultural and veterinary sciences ,040401 food science ,Lycopene ,Fermentation ,Food Science - Abstract
A functional yogurt-like product based on fermented maize enriched in carotenoids and phytosterols was developed to be an alternative to existing functional dairy products. Incorporation and stability of fat-soluble compounds were challenging in this complex matrix. Moreover, it is known that phytosterols decrease carotenoids absorption, but this decline can be offset by increasing carotenoids in foodstuffs. Thus, the aims of this work were to optimize the manufacturing process of a fermented yogurt-like product containing phytosterols by incorporating carotenoids taking into account two Lactobacilli strains as starters. The stability of β-cryptoxanthin, β-carotene and lycopene was studied during the whole process in order to confer a nutritional balance between them and phytosterols. After 15 h of fermentation, a starter ratio 50-50 (L. plantarum-L. casei) gave the best final biomass with 109 CFU/g necessary to obtain a probiotic potential. Relative carotenoid losses (20–27%) occurred during the pasteurization step while no negative impact on carotenoids was due to fermentation. Fat-soluble compounds remained relatively stable during the whole process with 75% of retention. These results suggest that incorporation and stability of carotenoids in a fermented-maize yogurt-like product containing phytosterols are necessary steps to induce a cholesterol-lowering effect without detrimental effects on carotenoids.
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- 2019
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25. Pasteur : premier des post-pasteuriens ?
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de Guglielmo, Marine
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Lorimer (Jamie) ,microorganism ,pasteurismo ,microorganisme ,Sociology and Political Science ,microbio ,Pasteurism ,probiotique ,post-pasteurisme ,Paxson (Heather) ,Education ,Pasteur (Louis) ,antibiotique ,microbe ,antibiótico ,History and Philosophy of Science ,post-Pasteurism ,antibiotic ,Anthropology ,probiótico ,microorganismo ,post-pasteurismo ,pasteurisme ,probiotic - Abstract
Ce texte vise à discuter le clivage historique et anthropologique proposé par les auteurs contemporains Heather Paxson et Jamie Lorimer, entre l'ère « pasteurienne » et l'ère « post-pasteurienne » ou bien encore entre l'ère « antibiotique » et l'ère « probiotique ». Nous proposons ainsi une relecture du travail de Pasteur et de ses collaborateurs, dans le but de questionner l'antagonisme qui l'opposerait au « post-pasteurisme » contemporain. This article aims to discuss the historical and anthropological divide theorized by contemporary authors Heather Paxson and Jamie Lorimer, between the “Pasteurian” era and the “post-Pasteurian” era or between the “antibiotic” era and the “probiotic” era. We thus propound a reinterpretation of the work of Pasteur and his collaborators, in order to question the antagonism which would oppose them to contemporary “post-pasteurism”. Este artículo pretende discutir la división histórica y antropológica propuesta por los autores contemporáneos Heather Paxson y Jamie Lorimer entre las eras «pasteurianas» y «post-pasteurianas», o entre las eras «antibióticas» y «probióticas». Proponemos así una nueva lectura de la obra de Pasteur y de sus colaboradores, con el fin de cuestionar el antagonismo que se le opondría al «pospasteurismo» contemporáneo.
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- 2021
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26. Impact of the gut microbiota on the neuroendocrine and behavioural responses to stress in rodents.
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Rabot, Sylvie, Jaglin, Mathilde, Daugé, Valérie, and Naudon, Laurent
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GUT microbiome , *PHYSIOLOGICAL stress , *PSYCHOLOGICAL stress research , *NEURAL development , *BACTERIAL metabolites , *ENTEROENDOCRINE cells - Abstract
The gastro-intestinal tract hosts a complex microbial ecosystem, the gut microbiota, whose collective genome coding capacity exceeds that of the host genome. The gut microbiota is nowadays regarded as a full organ, likely to contribute to the development of pathologies when its dynamic balance is disrupted (dysbiosis). In the last decade, evidence emerged that the gut microbiota influences brain development and function. In particular, comparisons between germ-free and conventional laboratory rodents showed that the absence of the gut microbiota exacerbates the hypothalamic pituitary adrenal (HPA) system reactivity to stress and alters the anxiety-like behaviour. Furthermore, the dysfunctions observed in germ-free animals can be corrected if the gut microbiota is restored in early life but not in adulthood, suggesting a critical period for microbiota imprinting on the responsiveness to stress. The modes of action are still to be deciphered. They may involve transport of neuroactive bacterial metabolites to the brain through the bloodstream, stimulation of the vagus nerve or of entero-endocrine cells, or modulation of the immune system and, consequently, of the inflammatory status. The discovery that the gut microbiota regulates the neuroendocrine and behavioural responses to stress paves the way for the hypothesis that gut microbiota dysbioses could contribute to the pathophysiology of anxiety-related disorders. In this regard, treatments of anxiety-prone rodent strains with probiotics or antibiotics aimed at modifying their gut microbiota have shown an anxiolytic-like activity. Clinical trials are now needed to know if results obtained in preclinical studies can translate to humans. [ABSTRACT FROM AUTHOR]
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- 2016
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27. Characterization of functional properties of Enterococcus faecium strains isolated from human gut.
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İspirli, Hümeyra, Demirbaş, Fatmanur, and Dertli, Enes
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ENTEROCOCCUS faecium , *GUT microbiome , *FECES , *MICROBIOLOGY , *BILE salts , *PROBIOTICS - Abstract
The aim of this work was to characterize the functional properties of Enterococcus faecium strains identified after isolation from human faeces. Of these isolates, strain R13 showed the best resistance to low pH, bile salts, and survival in the simulated in vitro digestion assay, and demonstrated an important level of adhesion to hexadecane as a potential probiotic candidate. Analysis of the antibiotic resistance of E. faecium strains indicated that in general these isolates were sensitive to the tested antibiotics and no strain appeared to be resistant to vancomycin. Examination of the virulence determinants for E. faecium strains demonstrated that all strains contained the virulence genes common in gut- and food-originated enterococci, and strain R13 harboured the lowest number of virulence genes. Additionally, no strain contained the genes related to cytolysin metabolism and showed hemolytic activity. The antimicrobial role of E. faecium strains was tested against several pathogens, in which different levels of inhibitory effects were observed, and strain R13 was inhibitory to all tested pathogens. PCR screening of genes encoding enterocin A and B indicated the presence of these genes in E. faecium strains. Preliminary characterization of bacteriocins revealed that their activity was lost after proteolytic enzyme treatments, but no alteration in antimicrobial activity was observed at different pHs (3.5 to 9.5) and after heat treatments. In conclusion, this study revealed the functional characteristics of E. faecium R13 as a gut isolate, and this strain could be developed as a new probiotic after further tests. [ABSTRACT FROM AUTHOR]
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- 2015
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28. Analysis of biofilm formation by intestinal lactobacilli.
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Slížová, Magdaléna, Nemcová, Radomíra, Mad'ar, Marián, Hadryová, Jana, Gancarčíková, Soňa, Popper, Miroslav, and Pistl, Juraj
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BIOFILMS , *LACTOBACILLUS , *BACTERIAL growth , *BACTERIAL cultures , *FLUORESCENCE in situ hybridization - Abstract
In this study, the biofilm-forming potential of intestinal Lactobacillus reuteri strains under different culture conditions was characterized by microtiter plate biofilm assays. Moreover, the spatial organization of exogenously applied L. reuteri L2/6 (a pig isolate) at specific locations in gastrointestinal tract of monoassociated mice was investigated by fluorescence in situ hybridization. We did not detect biofilm formation by tested strains in nutrient-rich de Man-Rogosa-Sharpe (MRS) medium. On the contrary, a highly positive biofilm formation was observed in medium with lower accessibility to the carbon sources and lack of salts. The results obtained confirmed the significant role of Tween 80 and the quantity and nature of the sugars in the growth medium in biofilm formation. The omission of Tween 80 in MRS medium favored the formation of biofilm. Abundant biofilm formation was detected in the presence of lactose, galactose, and glucose. However, a gradual increase in sugar concentration triggered a significant decrease in biofilm formation. In addition, conditions related to the gastrointestinal environment, such as low pH and the presence of bile and mucins, highly modulated biofilm production. This effect seems to be dependent on the specificity and properties of the medium used for cultivation. From the evidence provided by this study we conclude that the biofilm formation capacity of L. reuteri is strongly dependent on the environmental factors and culture medium used. [ABSTRACT FROM AUTHOR]
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- 2015
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29. Health benefits of fermented foods
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Savary-Auzeloux, Isabelle, Rul, Françoise, Unité de Nutrition Humaine (UNH), Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement (INRAE)-Université Clermont Auvergne (UCA), MICrobiologie de l'ALImentation au Service de la Santé (MICALIS), and AgroParisTech-Université Paris-Saclay-Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement (INRAE)
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nutrition ,fermented food ,prébiotique ,intestin ,prebiotic ,aliment fermenté ,gut ,health ,probiotique ,santé ,[SDV.AEN]Life Sciences [q-bio]/Food and Nutrition ,probiotic - Abstract
International audience; Fermentation allows to preserve food in a sustainable way at a lower cost and contributes to the world food security. This method of preservation is currently very popular with a population in search of naturalness. Health virtues are also attributed to fermented foods because they contain living micro-organisms or specific macro- and micronutrients. Are these products, or the fermentation process, as such really beneficial to health?; La fermentation permet de conserver de manière durable les aliments à moindre coût dans de nombreux pays et participe grandement à la sécurité alimentaire mondiale. Ce mode de conservation est actuellement très prisé par une population en recherche de naturalité. Des vertus santé sont également attribuées aux aliments fermentés parce qu’ils contiennent des microorganismes vivants ou des macro-micronutriments spécifiques. Ces produits, très divers, ou le processus de fermentation en tant que tel sont-ils bénéfiques pour la santé ?
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- 2021
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30. Innovations and prospects
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Fenelon, Mark A., Murphy, Eoin G., Martins, Evandro, Lopes Fialho, Tatiana, Schuck, Pierre, De Carvalho Fernandes, Antonio, Stephani, Rodrigo, Tuler Perrone, Italo, HO, Thao Minh, Zou, Zhengzheng, Bhandari, Bhesh, Bansal, Nidhi, Tanguy-Sai, Gaëlle, Mejean, Serge, Jeantet, Romain, Dolivet, Anne, Huang, Song, Jan, Gwénaël, Teagasc, Moorepark Food Research Centre, Ecole Nationale Vétérinaire, Agroalimentaire et de l'alimentation Nantes-Atlantique (ONIRIS), Universidade Federal de Vicosa (UFV), Science et Technologie du Lait et de l'Oeuf (STLO), AGROCAMPUS OUEST, Institut national d'enseignement supérieur pour l'agriculture, l'alimentation et l'environnement (Institut Agro)-Institut national d'enseignement supérieur pour l'agriculture, l'alimentation et l'environnement (Institut Agro)-Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement (INRAE), Universidade Federal de Juiz de Fora, Université d'Helsinki, Tongji University, University of Southern Queensland (USQ), Soochow University, and Cécile Le Floch-Fouéré, Pierre Schuck, Gaëlle Tanguy, Luca Lanotte, Romain Jeantet
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physicochemical propertie ,sustainable development ,protein aggregate ,[SDV.IDA]Life Sciences [q-bio]/Food engineering ,Infant formula ,thermodynamic propertie ,[SPI.GPROC]Engineering Sciences [physics]/Chemical and Process Engineering ,spray drying ,powder ,probiotique - Abstract
4.1 Infant formula (IF) and follow-on (FO) powders are formulated products used for early-life nutrition. Typical processing steps used in the manufacture of IF/FO powdered formulae include batch make-up, heating, homogenization, evaporation and drying. Both IF and FO powdered formulae must be manufactured to the highest safety standards, with increasing requirements for clinically proven nutritional benefits and optimal reconstitution properties, including good visual quality with no sedimentation, free oil, un-reconstituted particles or evidence of flecking. The chapter discusses the drying of IF and FO holistically, taking into account the effects of recipe, wet-processing and dryer configuration on production efficiency and powder quality. In particular, the effects of emulsion quality and viscosity prior to drying are presented as key variables, which illustrate the importance of formulation/recipe on wet-processing and subsequent drying behavior.4.2 The global lactose-free dairy products market still increasing drives the development of new lines of products by the dairy industry. In this sense, a wide variety of dairy products with lactose-free appeals are available on the market such as pasteurized and UHT milk, yogurt, cheeses, ice-cream, dulce de leche and other dairy products. However few reports describe the effect of lactose hydrolysis on the properties of dried milk powders during production and storage. Lactose hydrolyzed dried milk powder production remains a challenge for the dairy industry because of specific technological problems. Due to the presence of the monosaccharides glucose and galactose, lactose-free powders tend to suffer stickiness, caking and browning during drying and storage. This chapter deals with the consequences of lactose hydrolysis during the production and storage of dried milk powders.4.3 Camel milk has a composition and properties quite close to human milk. Camel milk’s composition is considered superior to that of bovine milk in terms of its nutritional and therapeutic value. It contains high concentrations of several bioactive compounds that have health benefits. To achieve long-term stability and usability, many dairy-based products and ingredients are dehydrated to powder form. However, such severe heat treatments eventuate in the loss of heat-labile bioactive compounds. Protecting these bioactive compounds during the production of camel milk powder is a challenge for dairy researchers and manufactures. To maintain the activity of such compounds, low-temperature drying operations such as freeze-drying are preferred, and there are many freeze-dried camel milk powder products available on the market. However, due to the limitations of freeze-drying in the production of milk powder, freeze-drying needs to be replaced with other economic drying approaches such as spray drying. However, the application of spray drying in the production of camel milk powder is still in early stages of research, and there are only a few reported studies. This chapter describes the bioactive properties of camel milk and the potential application of spray drying to produce camel milk powder. 4.4 An innovative processing scheme for the production of permeate powders is evaluated in this chapter. It includes an overconcentration step that makes it possible to replace the spray-drying step used in conventional processes. This innovative processing scheme includes: (1) overconcentration of the permeate concentrate from 60 to 80% w/w dry matter (DM) content; (2) granulation of the overconcentrate with powder up to 88% w/w DM; and (3) drying of the granules up to 97% w/w DM. Considering only water removal, the energy savings in comparison to the conventional process were estimated in the range of 10.7 to 23.5%, and even up to 32% when considering the whole production process or the drying step alone. The feasibility of the process was validated at pilot scale, and the results showed that it leads to significant savings in energy and building requirements for a quality of powder at least equivalent to a standard powder produced using conventional technologies.4.5 Due to the variety and complexity of the fat-filled concentrates to be dried, the dairy industry has been looking over the past 20 years for effective methods, including modeling, in order to predict the drying behavior of dairy products and adjust the outlet gas temperature and humidity. In this chapter, we describe a reliable method based on physicochemical and thermodynamic properties that was developed at INRAE to achieve this objective. It combines two approaches to predict the spray-drying parameters of fat-filled powder: on the one hand, a representative function of the availability of water in the concentrate, depending on its biochemical composition, is provided by a desorption method; on the other hand, the dryer key features (evaporation capacity, air flow rates, configuration) and weather conditions are considered (Schuck, 2013). It makes it possible to obtain a reliable prediction (± 5%) of the inlet air temperature for a given product formulation, and to develop continuous-improvement approaches.4.6 A novel spray-drying process for the continuous production of probiotics was proposed. Concentrated sweet whey (up to 30% w/w dry matter) was used to both culture and spray dry Propionibacterium freudenreichii ITG P20 and Lactobacillus casei BL23. This process cuts down the steps between culturing and drying (e.g. harvesting, washing, re-suspension), increases the cell population after growth and improves spray-drying productivity and probiotic viability. The mechanisms were explored from the point of view of both bacterial stress resistance and drying process conditions. The hypertonic stress led to overexpression of key stress proteins and the accumulation of intracellular compatible solutes, which contributed to the enhanced multistress tolerance acquisition in hyper-concentrated sweet whey. The presence of protein aggregates and increased concentration of magnesium salt in the matrix may also be involved. The feasibility of scaling up this process was validated at a semi-industrial scale. A multi-stage mild-conditions drying process, coupling spray drying with belt drying and fluid-bed drying, was applied to further improve the probiotic viability to approximately 100% (>109 CFU g−1). This work opens new avenues for the sustainable development of new starter and probiotic preparations with enhanced robustness.
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- 2021
31. The “psychomicrobiotic”: Targeting microbiota in major psychiatric disorders: A systematic review.
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Fond, G., Boukouaci, W., Chevalier, G., Regnault, A., Eberl, G., Hamdani, N., Dickerson, F., Macgregor, A., Boyer, L., Dargel, A., Oliveira, J., Tamouza, R., and Leboyer, M.
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MENTAL illness , *GUT microbiome , *METAGENOMICS , *NEURAL development , *PROBIOTICS , *SYSTEMATIC reviews - Abstract
The gut microbiota is increasingly considered as a symbiotic partner in the maintenance of good health. Metagenomic approaches could help to discover how the complex gut microbial ecosystem participates in the control of the host's brain development and function, and could be relevant for future therapeutic developments, such as probiotics, prebiotics and nutritional approaches for psychiatric disorders. Previous reviews focused on the effects of microbiota on the central nervous system in in vitro and animal studies. The aim of the present review is to synthetize the current data on the association between microbiota dysbiosis and onset and/or maintenance of major psychiatric disorders, and to explore potential therapeutic opportunities targeting microbiota dysbiosis in psychiatric patients. [ABSTRACT FROM AUTHOR]
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- 2015
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32. Etude comparative de l’efficacité d’un probiotique et de vaccins anti-K99 et anti-A14 pour la prophylaxie de la diarrhée chez les veaux au Brésil
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F.A. Avila, A.C. Paulillo, R.P. Schocken Iturrino, F.A. Lucas, A. Orgaz, and J.L. Quintana
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bovin ,veau ,diarrhée ,escherichia coli ,probiotique ,vaccin ,contrôle de maladies ,brésil ,Animal culture ,SF1-1100 - Abstract
Quatre-vingt-dix-neuf vaches gestantes ont été réparties en huit groupes et soumises au traitement suivant : le groupe I (29 sujets) comprenait des vaches non vaccinées dont les veaux n'avaient pas reéu de probiotique et servait de témoin. Le groupe II (10 sujets) se composait de vaches vaccinées dont les veaux n'avaient pas reéu de probiotique. Les groupes III, IV et V (10 sujets chacun) se composaient de vaches vaccinées dont les veaux avaient reéu un probiotique pendant 5, 15 et 30 jours respectivement. Les groupes VI, VII et VIII (l0 sujets chacun) étaient constitués de vaches non vaccinées dont les veaux avaient reéu un probiotique pendant 5, 15 et 30 jours respectivement. Tous les animaux ont été soumis à une observation clinique et bactériologique, et les titres d'anticorps anti-K99 et anti-A14 ont été déterminés dans le sérum et dans le colostrum. Les résultats montrent que la combinaison du vaccin avec le probiotique administré pendant 15 et 30 jours a constitué le traitement le plus efficace pour contrôler la diarrhée.
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- 1995
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33. Évaluation des probiotiques sur le marché officinal et élaboration d’un guide pratique d’aide au conseil sur les probiotiques pour le pharmacien d’officine
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Bornes, Florian, Université de Bordeaux (UB), and Sophie Millet
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[SDV]Life Sciences [q-bio] ,Pharmacy market ,Pharmacy ,Probiotic ,Officine ,Marché officinal ,Intestinal flora ,Outil ,Pathology ,Advice ,Evaluation ,Microbiote ,Pathologie ,Dysbiose ,Microbiota ,Probiotique ,[SDV.SP]Life Sciences [q-bio]/Pharmaceutical sciences ,Guide pratique ,Conseil ,Pharmacien ,Flore intestinale ,Évaluation ,Pharmacist ,Dysbiosis ,Tool ,practical guide - Abstract
Context: knowledge of the role of different microbiota in different pathogenic processes has enabled the development of many probiotics. As the probiotic market is booming, it is essential to have the right tools in hand as a healthcare professional to be able to best advise patients. Objectives: to enable healthcare professionals to evaluate the probiotics available on the officinal market and to give them an identification tool, depending on each pathology, of the therapeutic arsenal available in terms of probiotics. Method: we created a tool for the evaluation of probiotics based on expert reports. We then developed a practical guide, following a four-step process: 1) Evaluation and analysis of the probiotics available on the French pharmacy market. 2) Identification of the probiotic products available for each pathology. 3) Classification of strains / associations of strains by pathology, according to the different studies carried out, their effectiveness, and existing recommendations. 4) Production of advice sheets by linking the strains / associations of strains to the probiotic products marketed. Result: our practical guide for advice on probiotics enables us to manage no less than 18 common pathologies, using 45 probiotics available on the officinal market. Conclusion: we have developed a practical guide to help providing key advices on probiotics, which can be used both for counseling associated with a prescription, and counseling associated with a spontaneous request.; Contexte : la connaissance du rôle des différents microbiotes dans divers processus pathogènes a permis le développement de nombreux probiotiques. Le marché des probiotiques étant en plein essor, il est essentiel d’avoir les bons outils en main en tant que professionnel de santé pour pouvoir conseiller au mieux les patients. Objectifs : permettre aux professionnels de santé d’évaluer les probiotiques disponibles sur le marché officinal et leur fournir un outil permettant d’identifier, en fonction de chaque pathologie, l’arsenal thérapeutique dont ils disposent sous forme de probiotiques. Méthode : nous avons créé un outil pour l’évaluation des probiotiques en nous appuyant sur des rapports d’experts. Puis, nous avons élaboré un guide pratique, en suivant un déroulé en quatre étapes : 1) Évaluation et analyse des probiotiques disponibles sur le marché officinal français. 2) Identification des produits probiotiques disponibles pour chaque pathologie. 3) Classement des souches / associations de souches par pathologie, en fonction des différentes études réalisées, de leur efficacité, et des recommandations existantes. 4) Réalisation de fiches conseils en reliant les souches / associations de souches aux produits probiotiques commercialisés. Résultat : notre guide pratique d’aide au conseil sur les probiotiques, permet de prendre en charge pas moins de 18 pathologies courantes, à l’aide de 45 probiotiques disponibles sur le marché officinal. Conclusion : nous avons élaboré un guide pratique d’aide au conseil sur les probiotiques, pouvant être utilisé tant pour un conseil associé à une ordonnance, qu’à un conseil associé à une demande spontanée.
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- 2020
34. Prise en charge à l'officine du syndrome du côlon irritable
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Bourgogne, Karen, Faculté de Pharmacie - Clermont-Auvergne (FP - UCA), Université Clermont Auvergne [2017-2020] (UCA [2017-2020]), Brigitte Vennat, and UCA, Santé
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[SDV] Life Sciences [q-bio] ,[SDV.SP] Life Sciences [q-bio]/Pharmaceutical sciences ,Physiopathologie ,Prise en charge ,Syndrome côlon irritable ,[SDV]Life Sciences [q-bio] ,Probiotique ,[SDV.SP]Life Sciences [q-bio]/Pharmaceutical sciences ,Traitement ,Syndrome intestin irritable ,Officine ,Phytothérapie - Abstract
Cette thèse est consacrée à la prise en charge à l’officine du syndrome du côlon irritable appelé aussi syndrome de l’intestin irritable. L’auteur décrit une première partie dans laquelle il aborde les méthodes diagnostiques de cette pathologie ainsi que les différents mécanismes physiopathologiques qui entrent en jeu dans l’apparition des symptômes digestifs. Dans une seconde partie, l’auteur analyse les données de la littérature scientifique concernant les traitements existants dans la prise en charge de cette maladie afin d’avoir une vision globale de leur efficacité et de leur pertinence. La conclusion de cette thèse est constituée par une analyse de la place du pharmacien dans la prise en charge du syndrome de l’intestin irritable, en abordant les différents rôles qu’il endosse dans le diagnostic de cette pathologie ainsi que dans l’établissement d’une stratégie thérapeutique au comptoir. Cette thèse s’accompagne d’un mémento à l’attention de l’équipe officinale qui se veut être un outil visuel et clair résumant de manière simplifiée tous les points abordés dans cet ouvrage.
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- 2020
35. Comparative genome-scale analysis of niche-based stress-responsive genes in Lactobacillus helveticus strains.
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Senan, Suja, Prajapati, Jashbhai B., Joshi, Chaitanya G., and Bell, J.B.
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LACTOBACILLUS helveticus , *GENOMES , *HEAT shock proteins , *LACTOBACILLUS , *GENETICS - Abstract
Next generation sequencing technologies with advanced bioinformatic tools present a unique opportunity to compare genomes from diverse niches. The identification of niche-specific stress-responsive genes can help in characterizing robust strains for multiple applications. In this study, we attempted to compare the stress-responsive genes of a potential probiotic strain, Lactobacillus helveticus MTCC 5463, and a cheese starter strain, Lactobacillus helveticus DPC 4571, from a gut and dairy niche, respectively. Sequencing of MTCC 5463 was done using 454 GS FLX, and contigs were assembled using GS Assembler software. Genome analysis was done using BLAST hits and the prokaryotic annotation server RAST. The MTCC 5463 genome carried multiple orthologs of genes governing stress responses, whereas the DPC 4571 genome lacked in the number of major stress-response proteins. The absence of the bile salt hydrolase gene in DPC 4571 and its presence in MTCC 5463 clearly indicated niche adaptation. Further, MTCC 5463 carried higher copy numbers of genes contributing towards heat, cold, osmotic, and oxidative stress resistance as compared with DPC 4571. Through comparative genomics, we could thus identify stress-responsive gene sets required to adapt to gut and dairy niches. [ABSTRACT FROM AUTHOR]
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- 2014
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36. Place des thérapeutiques complémentaires et alternatives dans les dermatites atopiques.
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Derbré, Séverine and Launay, François
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Aussi largement utilisées par les patients que décriées par les médecins, les thérapeutiques complémentaires sont absentes des recommandations et des conférences de consensus en raison de l’extrême faiblesse de leur niveau de preuve. Pour autant, certaines représentent une alternative crédible en fonction des individus. Elles peuvent participer à la personnalisation du soin des patients, notamment ceux atteints de dermatite atopique. [ABSTRACT FROM AUTHOR]
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- 2014
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37. Les probiotiques : place et intérêts dans certaines pathologies inflammatoires et chroniques
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Rieutord, Florian, Aix-Marseille Université - Faculté de pharmacie (AMU PHARM), Aix Marseille Université (AMU), and Riad Elias
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Perméabilité ,Microbiote ,[SDV]Life Sciences [q-bio] ,Probiotique ,Cœliaque ,Psoriasis ,Dermatite ,[SDV.SP]Life Sciences [q-bio]/Pharmaceutical sciences ,Auto-immune ,Crohn - Abstract
L’être humain est largement plus constitué de bactéries que de ses propres cellules. En effet, il y a dix fois plus de micro-organismes dans notre intestin que de cellules humaines dans notre organisme. L’intestin est maintenant qualifié de « deuxième cerveau », en effet, il héberge 60 à 70 % de nos cellules immunitaires et communique grâce à plus de 100 millions de neurones ! Le microbiote constitue l’ensemble de ces micro-organismes. Les probiotiques sont des micro-organismes vivants qui, administrés en quantités adéquates, sont bénéfiques pour la santé de l’hôte. Cependant, il faut noter que leur résistance est augmentée par l’ingestion de nourriture en même temps que ces derniers. De plus, il y a peu de chance que les probiotiques adhèrent : les probiotiques doivent être continuellement ingérés et leur colonisation persiste selon les cas entre 2 à 20 jours. Les probiotiques présentent un véritable bénéfice thérapeutique dans la prise en charge de pathologies comme dans le maintien en rémission des maladies inflammatoires chroniques intestinales et surtout dans la prévention des pochites. Plus précisément, il a été montré que dans la maladie de Crohn, deux souches (Saccharomyces boulardii et Escherichia coli Nissle 1917) semblent prometteuses avec des récidives moins fréquentes. De plus, le complément alimentaire VSL # 3 permet d’induire une rémission chez 69% des patients dans le cas de la pochite. On peut également citer le Lactobacillus rhamnosus GG qui dans la maladie cœliaque restaure la barrière épithéliale. Ainsi, ce manuscrit permet de dévoiler l’ensemble des souches prometteuses pouvant être utilisées en tant que thérapie adjuvante.
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- 2020
38. Emmental, meilleur allié de notre microbiote !
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Jan, Gwénaël, Science et Technologie du Lait et de l'Oeuf (STLO), Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement (INRAE)-AGROCAMPUS OUEST, Institut national d'enseignement supérieur pour l'agriculture, l'alimentation et l'environnement (Institut Agro)-Institut national d'enseignement supérieur pour l'agriculture, l'alimentation et l'environnement (Institut Agro), and Giboulot, Anne
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[SDV] Life Sciences [q-bio] ,[SDV.AEN] Life Sciences [q-bio]/Food and Nutrition ,intestin ,[SDV]Life Sciences [q-bio] ,emmental ,santé humaine ,probiotique ,[SDV.AEN]Life Sciences [q-bio]/Food and Nutrition - Abstract
La texture des aliments, leur densité contribuent à protéger les bactéries qui viendront enrichir notre flore intestinale. Démonstration avec l’emmental.
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- 2020
39. Évaluation de l'efficacité d'un probiotique (exemple d'Alterion ®) sur la santé intestinale des poulets de chair
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Pourchasse, Célia, AGROCAMPUS OUEST, Institut national d'enseignement supérieur pour l'agriculture, l'alimentation et l'environnement (Institut Agro), Mg2Mix, ZA de la Basse Haye, 35220 Châteaubourg, Perrine Roussel, and Denis Chevalier
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Microbiote ,Poulet de chair ,Méthodologie ,Microbiota ,Broiler ,[SDV]Life Sciences [q-bio] ,[SDV.SA.SPA]Life Sciences [q-bio]/Agricultural sciences/Animal production studies ,Probiotique ,Methodology ,Santé intestinale ,Gut health ,Probiotic - Abstract
Probiotics are living organisms that, when administered, confer a health benefit on the host. They act on the intestinal mucosa of broilers by strengthening the integrity of the intestinal barrier, modulating intestinal morphology and stimulating the immune system. They can also secrete antimicrobial compounds (bacteriocins, lactic acid) to provide a favourable environment for bacteria that maintain the balance of the microbiota. An imbalance in the flora, called dysbiosis, is a factor in the emergence of certain pathologies (colibacillosis, necrotic enteritis). To evaluate the effectiveness of a probiotic (Atherion®) on intestinal health, a trial was carried out in an experimental station under challenging conditions. The animals were inoculated with coccidia to reproduce a pathology...; Les probiotiques sont des organismes vivants qui, lorsqu’ils sont administrés, confèrent un bénéfice pour la santé de l’hôte. Ils agissent sur la muqueuse intestinale des poulets de chair en renforçant l’intégrité de la barrière intestinale, en modulant la morphologie intestinale et en stimulant le système immunitaire. Ils peuvent également sécréter des composés antimicrobiens (bactériocines, acide lactique) pour installer un environnement favorable aux bactéries qui maintiennent l’équilibre du microbiote. Un déséquilibre de la flore, appelé dysbiose, est un facteur d’émergence de certaines pathologies (colibacillose, entérites nécrotiques). Pour évaluer l’efficacité d’un probiotique (Altérion®) sur la santé intestinale, un essai a été réalisé en station expérimentale en conditions challengées. Les animaux ont été inoculés avec des coccidies pour reproduire une pathologie...
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- 2020
40. Effets des laits artificiels supplémentés par des prébiotiques et/ou des probiotiques sur la santé des nourrissons
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Djoudi, Sara, Aix-Marseille Université - École de maïeutique (AMU SMPM EM), Aix-Marseille Université - Faculté des sciences médicales et paramédicales (AMU SMPM), Aix Marseille Université (AMU)-Aix Marseille Université (AMU), and Sébastien Riquet
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Nourrisson ,Fomula ,Lait artificiel ,Probiotique ,Prebiotic ,Infant ,Prébiotique ,[SDV.MHEP.GEO]Life Sciences [q-bio]/Human health and pathology/Gynecology and obstetrics ,Probiotic ,Term ,Terme - Abstract
Introduction: Breastfeeding, because of the composition of humain milk, is recommended until six months of the child by the WHO. However, there has been a decrease of exclusive breastfeeding. New artificial milks appear, with a composition trying to get as close as possible to breast milk. Objective: The objective is to identify the effects of prebiotic and / or probiotic supplements in fomula-fed on the health of infantsMethods: Studies comparing groups of formula fed infants to formula fed infants supplemented with prebiotics and / or probiotics were selected from databases (PubMed, Cochrane, Google Scholar)Results: The growth and tolerance studies did not show any significant difference. A decrease in colic and crying is nevertheless reported. A large part of the studies show an improvement in the transit, by the modification of the intestinal flora, less constipation and infectious diarrhea. They also demonstrate an improvement in immunity and a decrease in allergies in children formula fed supplemented with probiotics and/or prebiotics. Conclusion: The effects of milk supplemented with prebiotics are beneficial for the immune system, on the onset of allergies. There are no observed effects on growth and the appearance of side effects. Milks supplemented with probiotics and / or probiotics therefore have beneficial effects compared to standard milk and have no side effects.; Introduction : l’allaitement maternel, de par la composition du lait, est préconisé jusqu’au six mois de l’enfant par l’OMS. Cependant, on observe une baisse de l’allaitement maternel exclusif. De nouveaux laits artificiels apparaissent, avec une composition essayant de se rapprocher au maximum du lait maternel.Objectif : l’objectif est d’identifier les effets des laits supplémentés en prébiotiques et/ou probiotiques sur la santé des nourrissons. Méthodes : des études comparant des groupes de nourrissons nourris au lait artificiel à des nourrissons nourris au lait artificiel supplémentés en prébiotiques et/ou probiotiques ont été sélectionnées sur des bases de données (PubMed, Cochrane, Google Scholar.Résultats : les études sur la croissance et la tolérance n’ont pas vraiment montré de différence significative. Une diminution de coliques et de pleurs est néanmoins constatée. Une grande partie des études démontrent une amélioration du transit, de par la modification de la flore intestinale, moins de constipation et diarrhée. Elles démontrent aussi une amélioration de l’immunité et diminution des allergies chez les enfants nourris au lait supplémentés par les probiotiques et/ou prébiotiques. Conclusion : Les effets des laits supplémentés en prébiotiques sont bénéfiques pour le système immunitaire, sur l’apparition d’allergies. Il n’y a d’effets constatés sur la croissance et l’apparition d’effets indésirables. Les laits supplémentés en probiotiques et/ou probiotique ont donc des effets bénéfiques par rapport aux laits standards et ne présentent pas d’effet indésirables.
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- 2020
41. Intracellular osmoprotectant concentrations determine Propionibacterium freudenreichii survival during drying
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Gaucher, Floriane, Rabah, Houem, Kponouglo, Koffigan, Bonnassie, Sylvie, Pottier, Sandrine, Dolivet, Anne, Marchand, Pierre, Jeantet, Romain, Blanc, Philippe, Jan, Gwénaël, Science et Technologie du Lait et de l'Oeuf (STLO), Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement (INRAE)-INSTITUT AGRO Agrocampus Ouest, Institut national d'enseignement supérieur pour l'agriculture, l'alimentation et l'environnement (Institut Agro)-Institut national d'enseignement supérieur pour l'agriculture, l'alimentation et l'environnement (Institut Agro), Bioprox, Pôle Agronomique Ouest, Régions Bretagne et Pays de la Loire, Bba, Université de Rennes (UR), Institut des Sciences Chimiques de Rennes (ISCR), Université de Rennes (UR)-Institut National des Sciences Appliquées - Rennes (INSA Rennes), Institut National des Sciences Appliquées (INSA)-Institut National des Sciences Appliquées (INSA)-Ecole Nationale Supérieure de Chimie de Rennes (ENSCR)-Institut de Chimie du CNRS (INC)-Centre National de la Recherche Scientifique (CNRS), Biosit : biologie, santé, innovation technologique (SFR UMS CNRS 3480 - INSERM 018), Université de Rennes (UR)-Institut National de la Santé et de la Recherche Médicale (INSERM)-Centre National de la Recherche Scientifique (CNRS)-Structure Fédérative de Recherche en Biologie et Santé de Rennes ( Biosit : Biologie - Santé - Innovation Technologique ), Plate-forme Rennaise d'Imagerie et Spectroscopie Structurale et Métabolique (PRISM), Université de Rennes (UR)-Structure Fédérative de Recherche en Biologie et Santé de Rennes ( Biosit : Biologie - Santé - Innovation Technologique )-Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement (INRAE), 2016/0937, Association Nationale de la Recherche et de la Technologie, 2016/0937, Bioprox, Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement (INRAE)-AGROCAMPUS OUEST, Université de Rennes (UNIV-RENNES), Centre National de la Recherche Scientifique (CNRS)-Institut de Chimie du CNRS (INC)-Université de Rennes 1 (UR1), Université de Rennes (UNIV-RENNES)-Université de Rennes (UNIV-RENNES)-Ecole Nationale Supérieure de Chimie de Rennes (ENSCR)-Institut National des Sciences Appliquées - Rennes (INSA Rennes), Institut National des Sciences Appliquées (INSA)-Université de Rennes (UNIV-RENNES)-Institut National des Sciences Appliquées (INSA), Université de Rennes 1 (UR1), Université de Rennes (UNIV-RENNES)-Université de Rennes (UNIV-RENNES)-Institut National de la Santé et de la Recherche Médicale (INSERM)-Centre National de la Recherche Scientifique (CNRS)-Structure Fédérative de Recherche en Biologie et Santé de Rennes ( Biosit : Biologie - Santé - Innovation Technologique ), Université de Rennes (UNIV-RENNES)-Université de Rennes (UNIV-RENNES)-Structure Fédérative de Recherche en Biologie et Santé de Rennes ( Biosit : Biologie - Santé - Innovation Technologique )-Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement (INRAE), Cliquet, Catherine, AGROCAMPUS OUEST-Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement (INRAE), Université de Rennes (UNIV-RENNES)-Université de Rennes (UNIV-RENNES)-Institut National des Sciences Appliquées - Rennes (INSA Rennes), and Institut National des Sciences Appliquées (INSA)-Université de Rennes (UNIV-RENNES)-Institut National des Sciences Appliquées (INSA)-Ecole Nationale Supérieure de Chimie de Rennes-Centre National de la Recherche Scientifique (CNRS)
- Subjects
séchage ,propionibacterium freudenreichii ,osmoadaptation ,viabilité ,stress ,tréhalose ,Osmoadaptation ,Cross Protection ,Spray-drying ,Ingénierie des aliments ,Sodium Chloride ,Stress ,stress osmotique ,procédé de production ,Cheese ,Osmotic Pressure ,Propionibacteria ,capacité d'adaptation ,Food and Nutrition ,Food engineering ,Desiccation ,Microbial Viability ,Probiotics ,Microbiology and Parasitology ,Trehalose ,stress oxydatif ,food and beverages ,probiotique ,Adaptation, Physiological ,[SDV.MP.BAC]Life Sciences [q-bio]/Microbiology and Parasitology/Bacteriology ,Carbon ,Microbiologie et Parasitologie ,Culture Media ,Betaine ,Applied Microbial and Cell Physiology ,Freeze Drying ,Viability ,Alimentation et Nutrition ,[SDV.IDA.SMA]Life Sciences [q-bio]/Food engineering/domain_sdv.ida.sma ,[SDV.MP.BAC] Life Sciences [q-bio]/Microbiology and Parasitology/Bacteriology ,Cross-protection - Abstract
International audience; Propionibacterium freudenreichii is a beneficial bacterium widely used in food as a probiotic and as a cheese-ripening starter. In these different applications, it is produced, dried, and stored before being used. Both freeze-drying and spray-drying were considered for this purpose. Freeze-drying is a discontinuous process that is energy-consuming but that allows high cell survival. Spray-drying is a continuous process that is more energy-efficient but that can lead to massive bacterial death related to heat, osmotic, and oxidative stresses. We have shown that P. freudenreichii cultivated in hyperconcentrated rich media can be spray-dried with limited bacterial death. However, the general stress tolerance conferred by this hyperosmotic constraint remained a black box. In this study, we modulated P. freudenreichii growth conditions and monitored both osmoprotectant accumulation and stress tolerance acquisition. Changing the ratio between the carbohydrates provided and non-protein nitrogen during growth under osmotic constraint modulated osmoprotectant accumulation. This, in turn, was correlated with P. freudenreichii tolerance towards different stresses, on the one hand, and towards freeze-drying and spray-drying, on the other. Surprisingly, trehalose accumulation correlated with spray-drying survival and glycine betaine accumulation with freeze-drying. This first report showing the ability to modulate the trehalose/GB ratio in osmoprotectants accumulated by a probiotic bacterium opens new perspectives for the optimization of probiotics production.
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- 2020
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42. New treatments against mucositis
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Jan, Gwénaël, Le Loir, Yves, Valence, Florence, De Carvalho Azevedo, Vasco, de Oliveira Carvalho, Rodrigo Dias, ROSA DO CARMO, Fillipe Luiz, Cordeiro, Barbara Fernandes, Science et Technologie du Lait et de l'Oeuf (STLO), Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement (INRAE)-AGROCAMPUS OUEST, Institut national d'enseignement supérieur pour l'agriculture, l'alimentation et l'environnement (Institut Agro)-Institut national d'enseignement supérieur pour l'agriculture, l'alimentation et l'environnement (Institut Agro), Université Fédérale du Minas Gerais, université fédérale du Minas Gerais, and STLO INRAE,Institut Agro, Université de Minas Gerais Belo Horizonté
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internationale A61K35/741 ,C12N1/20- coopérative A61K35/741 (EP) ,C12N1/20 (EP) ,A61K2035/115 (EP) ,prévention de maladie ,Probiotique ,cellule épithéliale ,Inflammation de l'intestin ,[SDV.IB]Life Sciences [q-bio]/Bioengineering ,santé humaine ,humanities ,mucite - Abstract
The present invention relates to the field of probiotics. More particularly, the present invention relates to a composition comprising at least one bacterial strain pertaining to the genus Propionibacterium for use in the treatment or prevention of mucositis in a subject, preferably for the treatment or prevention of the alteration of tight junctions of epithelial tissue associated with mucositis.; La présente invention concerne le domaine des probiotiques. Plus particulièrement, la présente invention concerne une composition comprenant au moins une souche bactérienne appartenant au genre Propionibacterium pour une utilisation dans le traitement ou la prévention de la mucite chez un sujet, de préférence pour le traitement ou la prévention de l'altération des jonctions serrées du tissu épithélial associé avec mucite.
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- 2020
43. Production d'un aliment fonctionnel à base de lait maternel enrichi en probiotiques sur les propriétés anticancer et la prévention du syndrome métabolique
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Robichaud, Valérie and Robichaud, Valérie
- Abstract
Depuis les 20 dernières années, la santé mondiale est en déclin et le taux de dénutrition et d’obésité est en augmentation. Ces problèmes liés à la nutrition ont de multiples conséquences sur la santé de la population tel que le syndrome métabolique et autres maladies chroniques dégénératives. La création d’un aliment fonctionnel à base de lait maternel et de probiotiques ayant des capacités nutritionnelles et médicales éprouvées pourrait être une alternative envisagée pour améliorer ou prévenir les problèmes de santé lié à l’obésité et à la vieillesse chez les personnes à risque. En premier lieu, dans le but de produire un produit à base de lait maternel microbiologiquement sûr, il est impératif de mettre au point une technologie de décontamination efficace et rentable qui saura préserver les qualités nutritionnelles et immunologiques du produit. En effet, la présence de bactéries et surtout de spores bactériennes est une préoccupation pour les banques de lait maternel et les industries de production de préparation pour nourrissons. L’objectif de cette étude est de démontrer que l’irradiation gamma est une technologie de décontamination fiable pour les produits thermosensibles (lait maternel, lait maternisé) de différents formats (poudre ou liquide congelé), et qui pourra être applicable à différentes industries alimentaires visant des populations au système immunitaire plus fragile tel que les nouveau-nés ou les personnes âgées. Les résultats ont montré qu'à l'exception de L. monocytogenes et S. Typhimurium, tous les agents pathogènes testés étaient plus sensibles à l'irradiation sous forme reconstituée et congelée que dans le produit en poudre. En outre, le traitement par irradiation n'a entraîné aucune altération significative de la teneur en lactose et en protéines. Par contre, les propriétés antioxydantes et la quantité de vitamine C ont été altérées et une augmentation de la peroxydation des lipides a également été remarquée lorsqu’irradié sous
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- 2020
44. Adherence of bacteria to mucus collected from different parts of the reproductive tract of heifers and cows.
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Styková, E., Nemcová, R., Valocký, I., Novotný, F., and Guba, P.
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- *
CELL adhesion , *BACTERIAL cells , *MUCUS , *GENITALIA , *HEIFERS , *PROBIOTICS - Abstract
In the present study, we examined the adherence of indigenous vaginal bacteria, probiotic strains, and metritis pathogens to mucus collected from different parts of the reproductive tracts of heifers and cows and compared their adherence with the bacterial adherence to mucus collected from the stomach and large intestine of pigs. Most of the vaginal strains adhered to mucus collected from different parts of the reproductive tract and strongly adhered to gastric mucus, with the exception of Lactobacillus buchneri 24S8. Only Lactobacillus mucosae 29S8, Enterococcus faecium E21, and E. faecium EAC adhered to colonic mucus. Probiotic strains adhered strongly to mucus collected from the reproductive tract and gastric mucus but did not adhere to colonic mucus. Pathogenic strains were adherent to vaginal, uterine horn, and gastric mucus, except Escherichia coli O8:K88ab:H9 (65), Fusobacterium necrophorum, and Gardnerella vaginalis, which adhered to uterine cervix mucus. Only Kocuria kristinae and G. vaginalis adhered to uterine body mucus; E. coli O149:K88ac (EC) adhered to colonic mucus. The strains did not exhibit host specificity but rather strain specificity. The ability to adhere to mucus was a characteristic unique to each strain. To our knowledge, this is the first report regarding in vitro adherence of GRAS (Generally Regarded As Safe) lactobacilli isolated from different sources to mucus collected from different parts of the reproductive tract. [ABSTRACT FROM AUTHOR]
- Published
- 2013
- Full Text
- View/download PDF
45. Probiotic treatment by indigenous bacteria decreases mortality without disturbing the natural microbiota of Salvelinus fontinalis.
- Author
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Boutin, Sébastien, Audet, Céline, and Derome, Nicolas
- Subjects
- *
BROOK trout , *PROBIOTICS , *FISH microbiology , *FISH mortality , *HOSTS (Biology) , *FLAVOBACTERIUM , *HOST-bacteria relationships , *RHODOCOCCUS - Abstract
Next-generation sequencing is revealing the complex interactive networks of host-bacteria interactions, as it is now possible to screen in detail the microbiota harbored by a host. This study investigated the influence of a probiotic treatment on the survival and microbiota of brook charr ( Salvelinus fontinalis), focusing on its disturbance of the natural microbiota (dysbiosis). The results indicated that an indigenous probiotic strain (identified as Rhodococcus sp.) colonized neither the fish skin mucus nor the water following the probiotic treatment. Instead, the probiotic strain was detected only in the biofilm of the test tank. Nevertheless, a substantial beneficial effect of the probiotic treatment was observed: the population of the pathogen Flavobacterium psychrophilum decreased in the treated tank water. This study clearly shows that the indigenous strain chosen for the probiotic treatment did not disturb the natural fish skin mucus microbiota but acted directly through the production system to control the growth of the pathogen and, as a consequence, to enhance fish survival. [ABSTRACT FROM AUTHOR]
- Published
- 2013
- Full Text
- View/download PDF
46. Synbiotic administration of canine-derived strain Lactobacillus fermentum CCM 7421 and inulin to healthy dogs.
- Author
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Strompfová, Viola, Lauková, Andrea, and Cilik, Dušan
- Subjects
- *
LACTOBACILLUS fermentum , *INULIN , *ANIMAL health , *DOGS , *PROBIOTICS , *PREBIOTICS , *BODY mass index - Abstract
The canine-derived strain Lactobacillus fermentum CCM 7421 has been demonstrated to exert certain health benefits as a probiotic in dogs. Synbiotic combinations are widely used but are rarely studied in dogs. In this study the prebiotic inulin in combination with L. fermentum CCM 7421 was tested for its effects on faecal microbial populations, faecal characteristics, and blood biochemistry in canine experiments. Healthy adult dogs ( n = 36) were randomly assigned to 1 of 3 treatment groups (12 dogs/treatment): ( i) the control group (C), ( ii) the probiotic group (LF group: L. fermentum CCM 7421, 108 CFU/mL of Ringer buffer, 0.1 mL/kg of body mass), and ( iii) the synbiotic group (LF+I group: L. fermentum CCM 7421 + inulin (I; Raftifeed IPS) added as 1% of diet). The experiment lasted for 7 weeks with a 2-week treatment period. We detected a significant increase of lactic acid bacteria (LF versus C, day 7; LF versus C and LF versus LF+I, days 28 and 49), a decrease of clostridia (LF versus C, day 14), a lower pH value (LF versus LF+I, day 28), and a higher ammonia concentration (LF versus LF+I, days 14 and 49) in faecal samples. The synbiotic LF+I combination did not intensify the probiotic L. fermentum CCM 7421 efficacy, but its slight laxative effect can be useful to prevent constipation, e.g., in senior dogs. [ABSTRACT FROM AUTHOR]
- Published
- 2013
- Full Text
- View/download PDF
47. The effect of Escherichia coli ŽP strain with a conjugation-based colicin E7 delivery on growth performance, hematological, biochemical, and histological parameters, gut microbiota, and nonspecific immunity of broilers.
- Author
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Orlova EG, Maslennikova IL, Pospelova JS, Starčič Erjavec M, Loginova NP, Troinich YN, and Kuznetsova MV
- Subjects
- Animals, Escherichia coli genetics, Chickens, Colicins pharmacology, Gastrointestinal Microbiome, Escherichia coli Infections prevention & control, Probiotics pharmacology
- Abstract
The Escherichia coli ŽP strain (ŽP) was constructed based on the known probiotic E. coli strain Nissle 1917. It was genetically modified to carry the colicin E7 synthesis gene encoding DNase on a conjugative plasmid and the colicin E7 immunity gene in the chromosome. The aim of this study was to evaluate the effects of the daily ŽP per oral administration (5 × 10
8 or 5 × 1010 CFU per bird) on the growth performance, hematological, biochemical, histological parameters, gut microbiota, and nonspecific immunity of the 4-24 days old broilers. The ŽP administration increased the abundance of genera Bacillus, Butyrivibrio , and Clostridium and did not influence the weight gain of 4-16 days old broilers. The biochemical parameters were within normal ranges for poultry in experimental and control groups. The ŽP administration had no effect on the erythrocyte numbers, hemoglobin and immunoglobulin Y concentrations, but significantly increased the serum lysozyme concentration, leukocyte numbers, and reactive oxygen species production by phagocytes compared with the control group. It did not cause inflammatory changes in intestinal mucosa, Peyer's patches, and spleen. Thus, the ŽP had no detrimental effects on broiler health and could be an efficient probiotic for the broiler colibacillosis prophylaxis.- Published
- 2022
- Full Text
- View/download PDF
48. Temporal variation in skin microbiota of cohabitating amphibians.
- Author
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Kruger A and Roth S
- Subjects
- Amphibians genetics, Amphibians microbiology, Animals, Bacteria genetics, RNA, Ribosomal, 16S genetics, Skin microbiology, Chytridiomycota genetics, Microbiota
- Abstract
Temporal changes and transmission patterns in host-associated microbial communities have important implications for host health. The diversity of amphibian skin microbial communities is associated with disease outcome in amphibians exposed to the fungal pathogen Batrachochytrium dendrobatidis (Bd). To successfully develop conservation strategies against Bd, we need a comprehensive understanding of how skin microbes are maintained and transmitted over time within populations. We used 16S rRNA sequence analysis to compare Epipedobates anthonyi frogs housed with one conspecific to frogs housed singly at four time points over the course of 1 year. We found that both α and β diversity of frog skin bacterial communities changed significantly over the course of the experiment. Specifically, we found that bacterial communities of cohabitating frogs became more similar over time. We also observed that some bacterial taxa were differentially abundant between frogs housed singly and frogs housed with a conspecific. These results suggest that conspecific contact may play a role in mediating amphibian skin microbial diversity and that turnover of skin microbial communities can occur across time. Our findings provide rationale for future studies exploring horizontal transmission as a potential mechanism of host-associated microbial maintenance in amphibians.
- Published
- 2022
- Full Text
- View/download PDF
49. Effects of dietary various supplementations on the mucin- and serotonin- releasing cell numbers in small intestine of quails.
- Author
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SIMSEK, N., CAN, I., KARADENIZ, A., KARA, A., and GUMUS, R.
- Abstract
The article discusses a study which examined immunohistochemical changes of mucin- and serotonin-releasing cells in the small intestine of quails. The one-day-old quails included in the study were divided into five groups and fed with basal diet, prebiotics/probiotics, organic acids, a combination of prebiotics/probiotics and organic acids and antibiotic. Findings revealed an increase in the density of goblet cells in ileum in all supplemented groups except for those fed with antibiotic. Results also showed a decline in the number of intestinal serotonin positive cells in all birds, with cell depletion being lowest in those supplemented with organic acids.
- Published
- 2012
50. Does the applicability of Bacillus strains in probiotics rely upon their taxonomy?
- Author
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Safronova, L.A., Zelena, L.B., Klochko, V.V., and Reva, O.N.
- Subjects
- *
BACILLUS (Bacteria) , *PROBIOTICS , *PATHOGENIC bacteria , *BACTERIAL metabolites , *RIBOSOMAL RNA , *BIOTECHNOLOGICAL microorganisms - Abstract
The taxonomic position and biological activities of two Bacillus strains used in veterinary probiotics were studied in this work. These microorganisms inhibit growth of a broad spectrum of pathogenic cultures. They synthesize proteolytic enzymes and other biologically active metabolites, and to some extent, supplement each other with probiotic activities. It is not clear whether these versatile activities are properties of individual strains or bacterial taxa as whole. 16S rRNA comparisons were conducted and illustrated the relatedness of these strains to Bacillus amyloliquefaciens. Their cell wall fatty acid contents were consequently analysed and specified a relation to the ' Bacillus velezensis' ecomorph. On account of the previous observations, a simple method of 16S rRNA profiling by polymorphic nucleotides was proposed to determine a group of organisms closely related to ' B. velezensis' and B. amyloliquefaciens subsp. plantarum, for they are biologically active strains suitable for use in biotechnology. The extreme genetic plasticity of these bacteria endowed each strain with a unique spectrum of antagonistic activity. [ABSTRACT FROM AUTHOR]
- Published
- 2012
- Full Text
- View/download PDF
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