1
|
Roques S, Martinez-Fernandez G, Ramayo-Caldas Y, Popova M, Denman S, Meale SJ, Morgavi DP. Recent Advances in Enteric Methane Mitigation and the Long Road to Sustainable Ruminant Production. Annu Rev Anim Biosci 2024; 12:321-343. [PMID: 38079599 DOI: 10.1146/annurev-animal-021022-024931] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/16/2024]
Abstract
Mitigation of methane emission, a potent greenhouse gas, is a worldwide priority to limit global warming. A substantial part of anthropogenic methane is emitted by the livestock sector, as methane is a normal product of ruminant digestion. We present the latest developments and challenges ahead of the main efficient mitigation strategies of enteric methane production in ruminants. Numerous mitigation strategies have been developed in the last decades, from dietary manipulation and breeding to targeting of methanogens, the microbes that produce methane. The most recent advances focus on specific inhibition of key enzymes involved in methanogenesis. But these inhibitors, although efficient, are not affordable and not adapted to the extensive farming systems prevalent in low- and middle-income countries. Effective global mitigation of methane emissions from livestock should be based not only on scientific progress but also on the feasibility and accessibility of mitigation strategies.
Collapse
Affiliation(s)
- Simon Roques
- Université Clermont Auvergne, INRAE, VetAgro Sup, UMR Herbivores, Saint-Genes-Champanelle, France; , ,
| | | | - Yuliaxis Ramayo-Caldas
- Animal Breeding and Genetics Program, Institute of Agrifood Research and Technology (IRTA), Torre Marimon, Caldes de Montbui, Spain;
| | - Milka Popova
- Université Clermont Auvergne, INRAE, VetAgro Sup, UMR Herbivores, Saint-Genes-Champanelle, France; , ,
| | - Stuart Denman
- Agriculture and Food, CSIRO, St. Lucia, Queensland, Australia; ,
| | - Sarah J Meale
- School of Agriculture and Food Sustainability, Faculty of Science, University of Queensland, Gatton, Queensland, Australia;
| | - Diego P Morgavi
- Université Clermont Auvergne, INRAE, VetAgro Sup, UMR Herbivores, Saint-Genes-Champanelle, France; , ,
| |
Collapse
|
2
|
Morgavi DP, Cantalapiedra-Hijar G, Eugène M, Martin C, Noziere P, Popova M, Ortigues-Marty I, Muñoz-Tamayo R, Ungerfeld EM. Review: Reducing enteric methane emissions improves energy metabolism in livestock: is the tenet right? Animal 2023; 17 Suppl 3:100830. [PMID: 37263815 DOI: 10.1016/j.animal.2023.100830] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/05/2022] [Revised: 12/21/2022] [Accepted: 12/30/2022] [Indexed: 06/03/2023] Open
Abstract
The production of enteric methane in the gastrointestinal tract of livestock is considered as an energy loss in the equations for estimating energy metabolism in feeding systems. Therefore, the spared energy resulting from specific inhibition of methane emissions should be re-equilibrated with other factors of the equation. And, it is commonly assumed that net energy from feeds increases, thus benefitting production functions, particularly in ruminants due to the important production of methane in the rumen. Notwithstanding, we confirm in this work that inhibition of emissions in ruminants does not transpose into consistent improvements in production. Theoretical calculations of energy flows using experimental data show that the expected improvement in net energy for production is small and difficult to detect under the prevailing, moderate inhibition of methane production (≈25%) obtained using feed additives inhibiting methanogenesis. Importantly, the calculation of energy partitioning using canonical models might not be adequate when methanogenesis is inhibited. There is a lack of information on various parameters that play a role in energy partitioning and that may be affected under provoked abatement of methane. The formula used to calculate heat production based on respiratory exchanges should be validated when methanogenesis is inhibited. Also, a better understanding is needed of the effects of inhibition on fermentation products, fermentation heat, and microbial biomass. Inhibition induces the accumulation of H2, the main substrate used to produce methane, that has no energetic value for the host, and it is not extensively used by the majority of rumen microbes. Currently, the fate of this excess of H2 and its consequences on the microbiota and the host are not well known. All this additional information will provide a better account of energy transactions in ruminants when enteric methanogenesis is inhibited. Based on the available information, it is concluded that the claim that enteric methane inhibition will translate into more feed-efficient animals is not warranted.
Collapse
Affiliation(s)
- D P Morgavi
- Université Clermont Auvergne, INRAE, VetAgro Sup, UMR Herbivores, F-63122 Saint-Genes-Champanelle, France.
| | - G Cantalapiedra-Hijar
- Université Clermont Auvergne, INRAE, VetAgro Sup, UMR Herbivores, F-63122 Saint-Genes-Champanelle, France
| | - M Eugène
- Université Clermont Auvergne, INRAE, VetAgro Sup, UMR Herbivores, F-63122 Saint-Genes-Champanelle, France
| | - C Martin
- Université Clermont Auvergne, INRAE, VetAgro Sup, UMR Herbivores, F-63122 Saint-Genes-Champanelle, France
| | - P Noziere
- Université Clermont Auvergne, INRAE, VetAgro Sup, UMR Herbivores, F-63122 Saint-Genes-Champanelle, France
| | - M Popova
- Université Clermont Auvergne, INRAE, VetAgro Sup, UMR Herbivores, F-63122 Saint-Genes-Champanelle, France
| | - I Ortigues-Marty
- Université Clermont Auvergne, INRAE, VetAgro Sup, UMR Herbivores, F-63122 Saint-Genes-Champanelle, France
| | - R Muñoz-Tamayo
- Université Paris-Saclay, INRAE, AgroParisTech, UMR Modélisation Systémique Appliquée aux Ruminants, 91120 Palaiseau, France
| | - E M Ungerfeld
- Centro Regional de Investigación Carillanca, Instituto de Investigaciones Agropecuarias INIA, Temuco 4880000, Chile
| |
Collapse
|
3
|
Andersen TO, Altshuler I, Vera-Ponce de León A, Walter JM, McGovern E, Keogh K, Martin C, Bernard L, Morgavi DP, Park T, Li Z, Jiang Y, Firkins JL, Yu Z, Hvidsten TR, Waters SM, Popova M, Arntzen MØ, Hagen LH, Pope PB. Metabolic influence of core ciliates within the rumen microbiome. ISME J 2023:10.1038/s41396-023-01407-y. [PMID: 37169869 DOI: 10.1038/s41396-023-01407-y] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/29/2022] [Revised: 03/29/2023] [Accepted: 03/30/2023] [Indexed: 05/13/2023]
Abstract
Protozoa comprise a major fraction of the microbial biomass in the rumen microbiome, of which the entodiniomorphs (order: Entodiniomorphida) and holotrichs (order: Vestibuliferida) are consistently observed to be dominant across a diverse genetic and geographical range of ruminant hosts. Despite the apparent core role that protozoal species exert, their major biological and metabolic contributions to rumen function remain largely undescribed in vivo. Here, we have leveraged (meta)genome-centric metaproteomes from rumen fluid samples originating from both cattle and goats fed diets with varying inclusion levels of lipids and starch, to detail the specific metabolic niches that protozoa occupy in the context of their microbial co-habitants. Initial proteome estimations via total protein counts and label-free quantification highlight that entodiniomorph species Entodinium and Epidinium as well as the holotrichs Dasytricha and Isotricha comprise an extensive fraction of the total rumen metaproteome. Proteomic detection of protozoal metabolism such as hydrogenases (Dasytricha, Isotricha, Epidinium, Enoploplastron), carbohydrate-active enzymes (Epidinium, Diplodinium, Enoploplastron, Polyplastron), microbial predation (Entodinium) and volatile fatty acid production (Entodinium and Epidinium) was observed at increased levels in high methane-emitting animals. Despite certain protozoal species having well-established reputations for digesting starch, they were unexpectedly less detectable in low methane emitting-animals fed high starch diets, which were instead dominated by propionate/succinate-producing bacterial populations suspected of being resistant to predation irrespective of host. Finally, we reaffirmed our abovementioned observations in geographically independent datasets, thus illuminating the substantial metabolic influence that under-explored eukaryotic populations have in the rumen, with greater implications for both digestion and methane metabolism.
Collapse
Affiliation(s)
- Thea O Andersen
- Department of Animal and Aquacultural Sciences, Faculty of Biosciences, Norwegian University of Life Sciences, Ås, Norway
| | - Ianina Altshuler
- Department of Animal and Aquacultural Sciences, Faculty of Biosciences, Norwegian University of Life Sciences, Ås, Norway
| | - Arturo Vera-Ponce de León
- Faculty of Chemistry, Biotechnology and Food Science, Norwegian University of Life Sciences, Ås, Norway
| | - Juline M Walter
- Faculty of Chemistry, Biotechnology and Food Science, Norwegian University of Life Sciences, Ås, Norway
| | - Emily McGovern
- Teagasc, Animal and Bioscience Research Department, Animal and Grassland Research and Innovation Centre, Teagasc, Grange, Dunsany, County, Meath, Ireland
| | - Kate Keogh
- Teagasc, Animal and Bioscience Research Department, Animal and Grassland Research and Innovation Centre, Teagasc, Grange, Dunsany, County, Meath, Ireland
| | - Cécile Martin
- INRAE, VetAgro Sup, UMR Herbivores, Université Clermont Auvergne, Saint-Genes-Champanelle, France
| | - Laurence Bernard
- INRAE, VetAgro Sup, UMR Herbivores, Université Clermont Auvergne, Saint-Genes-Champanelle, France
| | - Diego P Morgavi
- INRAE, VetAgro Sup, UMR Herbivores, Université Clermont Auvergne, Saint-Genes-Champanelle, France
| | - Tansol Park
- Department of Animal Science and Technology, Chung-Ang University, Anseong-si, Gyeonggi-do, Republic of Korea
- Department of Animal Sciences, The Ohio State University, Columbus, OH, USA
| | - Zongjun Li
- Center for Ruminant Genetics and Evolution, College of Animal Science and Technology, Northwest A&F University, Yangling, Xianyang, China
| | - Yu Jiang
- Center for Ruminant Genetics and Evolution, College of Animal Science and Technology, Northwest A&F University, Yangling, Xianyang, China
| | - Jeffrey L Firkins
- Department of Animal Sciences, The Ohio State University, Columbus, OH, USA
| | - Zhongtang Yu
- Department of Animal Sciences, The Ohio State University, Columbus, OH, USA
| | - Torgeir R Hvidsten
- Faculty of Chemistry, Biotechnology and Food Science, Norwegian University of Life Sciences, Ås, Norway
| | - Sinead M Waters
- Teagasc, Animal and Bioscience Research Department, Animal and Grassland Research and Innovation Centre, Teagasc, Grange, Dunsany, County, Meath, Ireland
| | - Milka Popova
- INRAE, VetAgro Sup, UMR Herbivores, Université Clermont Auvergne, Saint-Genes-Champanelle, France
| | - Magnus Ø Arntzen
- Faculty of Chemistry, Biotechnology and Food Science, Norwegian University of Life Sciences, Ås, Norway
| | - Live H Hagen
- Faculty of Chemistry, Biotechnology and Food Science, Norwegian University of Life Sciences, Ås, Norway
| | - Phillip B Pope
- Department of Animal and Aquacultural Sciences, Faculty of Biosciences, Norwegian University of Life Sciences, Ås, Norway.
- Faculty of Chemistry, Biotechnology and Food Science, Norwegian University of Life Sciences, Ås, Norway.
| |
Collapse
|
4
|
Popova M, Messé A, Gulberti A, Gerloff C, Pötter-Nerger M, Hilgetag C. P-117 A topology-based computational framework to assess the effect of deep brain stimulation in the context of freezing of gait in Parkinson’s disease. Clin Neurophysiol 2023. [DOI: 10.1016/j.clinph.2023.02.134] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/08/2023]
|
5
|
Romero P, Huang R, Jiménez E, Palma-Hidalgo JM, Ungerfeld EM, Popova M, Morgavi DP, Belanche A, Yáñez-Ruiz DR. Evaluating the effect of phenolic compounds as hydrogen acceptors when ruminal methanogenesis is inhibited in vitro – Part 2. Dairy goats. Animal 2023; 17:100789. [PMID: 37087998 DOI: 10.1016/j.animal.2023.100789] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/11/2022] [Revised: 03/17/2023] [Accepted: 03/20/2023] [Indexed: 03/31/2023] Open
Abstract
Most mitigation strategies to reduce enteric methane (CH4) production in the rumen induce an excess of rumen dihydrogen (H2) that is expelled and consequently not redirected to the synthesis of metabolites that can be utilised by the ruminant. We hypothesised that phenolic compounds can be potential H2 acceptors when added to the diet, as they can be degraded to compounds that may be beneficial for the animal, using part of the H2 available when ruminal methanogenesis is inhibited. We performed four in vitro incubation experiments using rumen inoculum from Murciano-Granadina adult goats: Experiment 1 examined the inhibitory potential of Asparagopsis taxiformis (AT) at different concentrations (0, 1, 2, 3, 4 and 5% of the substrate on a DM basis) in 24 h incubations; Experiment 2 investigated the effect of a wide range of phenolic compounds (phenol, catechol, resorcinol, hydroquinone, pyrogallol, phloroglucinol, gallic acid and formic acid) at different doses (0, 2, 4, and 6 mM) on rumen fermentation for 24 h; Experiment 3 evaluated the combined effect of each phenolic compound at 6 mM with AT at 2% DM in sequential batch cultures for 5 days; and Experiment 4 examined the dose-response effect of phloroglucinol at different concentrations (0, 6, 16, 26 and 36 mM) combined with AT in sequential batch cultures for 5 days. Results from Experiment 1 confirmed that AT at 2% DM substantially inhibited CH4 production while significantly increasing H2 accumulation and decreasing the acetate:propionate ratio. Results from Experiment 2 showed that phenolic compounds did not negatively affect rumen fermentation at any dose. In Experiment 3, each phenolic compound at 6 mM combined with AT at 2% DM inhibited CH4 production. Phloroglucinol numerically decreased H2 accumulation and significantly increased total gas production (TGP), volatile fatty acid (VFA) production and the acetate:propionate ratio. In Experiment 4, phloroglucinol at increasing doses supplemented with AT at 2% DM significantly decreased H2 accumulation and the abundances of archaea, protozoa and fungi abundances, and increased TGP, total VFA production and the acetate:propionate ratio in a dose-dependent way. In conclusion, combined treatment with AT and phloroglucinol was successful to mitigate CH4 production while preventing the accumulation of H2, leading to an increase in acetate and total VFA production and therefore an improvement in rumen fermentation in goats.
Collapse
Affiliation(s)
- P Romero
- Estación Experimental del Zaidín (CSIC), Profesor Albareda, 1, 18008 Granada, Spain
| | - R Huang
- Université Clermont Auvergne, INRAE, VetAgro Sup, UMR Herbivores, F-63122 Saint-Genès Champanelle, France
| | - E Jiménez
- Estación Experimental del Zaidín (CSIC), Profesor Albareda, 1, 18008 Granada, Spain
| | - J M Palma-Hidalgo
- Estación Experimental del Zaidín (CSIC), Profesor Albareda, 1, 18008 Granada, Spain
| | - E M Ungerfeld
- Centro Regional de Investigación Carillanca, Instituto de Investigaciones Agropecuarias INIA, Temuco 4880000, Chile
| | - M Popova
- Université Clermont Auvergne, INRAE, VetAgro Sup, UMR Herbivores, F-63122 Saint-Genès Champanelle, France
| | - D P Morgavi
- Université Clermont Auvergne, INRAE, VetAgro Sup, UMR Herbivores, F-63122 Saint-Genès Champanelle, France
| | - A Belanche
- Estación Experimental del Zaidín (CSIC), Profesor Albareda, 1, 18008 Granada, Spain; Departamento de Producción Animal y Ciencia de los Alimentos, Universidad de Zaragoza, Miguel Servet 177, 50013 Zaragoza, Spain
| | - D R Yáñez-Ruiz
- Estación Experimental del Zaidín (CSIC), Profesor Albareda, 1, 18008 Granada, Spain.
| |
Collapse
|
6
|
Huang R, Romero P, Belanche A, Ungerfeld E, Yanez-Ruiz D, Morgavi D, Popova M. Evaluating the effect of phenolic compounds as hydrogen acceptors when ruminal methanogenesis is inhibited in vitro – Part 1. Dairy cows. Animal 2023; 17:100788. [PMID: 37087996 DOI: 10.1016/j.animal.2023.100788] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/11/2022] [Revised: 03/09/2023] [Accepted: 03/13/2023] [Indexed: 03/31/2023] Open
Abstract
Some antimethanogenic feed additives for ruminants promote rumen dihydrogen (H2) accumulation potentially affecting the optimal fermentation of diets. We hypothesised that combining an H2 acceptor with a methanogenesis inhibitor can decrease rumen H2 build-up and improve the production of metabolites that can be useful for the host ruminant. We performed three in vitro incubation experiments using rumen fluid from lactating Holstein cows: Experiment 1 examined the effect of phenolic compounds (phenol, catechol, resorcinol, hydroquinone, pyrogallol, phloroglucinol, and gallic acid) at 0, 2, 4, and 6 mM on ruminal fermentation for 24 h; Experiment 2 examined the combined effect of each phenolic compound from Experiment 1 at 6 mM with two different methanogenesis inhibitors (Asparagopsis taxiformis or 2-bromoethanesulfonate (BES)) for 24 h incubation; Experiment 3 examined the effect of a selected phenolic compound, phloroglucinol, with or without BES over a longer term using sequential incubations for seven days. Results from Experiment 1 showed that phenolic compounds, independently of the dose, did not negatively affect rumen fermentation, whereas results from Experiment 2 showed that phenolic compounds did not decrease H2 accumulation or modify CH4 production when methanogenesis was decreased by up to 75% by inhibitors. In Experiment 3, after three sequential incubations, phloroglucinol combined with BES decreased H2 accumulation by 72% and further inhibited CH4 production, compared to BES alone. Interestingly, supplementation with phloroglucinol (alone or in combination with the CH4 inhibitor) decreased CH4 production by 99% and the abundance of methanogenic archaea, with just a nominal increase in H2 accumulation. Supplementation of phloroglucinol also increased total volatile fatty acid (VFA), acetate, butyrate, and total gas production, and decreased ammonia concentration. This study indicates that some phenolic compounds, particularly phloroglucinol, which are naturally found in plants, could improve VFA production, decrease H2 accumulation and synergistically decrease CH4 production in the presence of antimethanogenic compounds.
Collapse
|
7
|
Sarancha G, Ammosov Y, Balashov A, Butrova N, Krokhalev O, Loginov A, Melnikov A, Popova M, Stepin A, Stolbov A, Svoboda V, Suntsov S, Timkovskiy G. Remote Plasma Physics Research and Teaching by Example of Turbulence Study at the University-Scale Tokamak GOLEM. Fusion Science and Technology 2023. [DOI: 10.1080/15361055.2022.2148842] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/12/2023]
Affiliation(s)
- G. Sarancha
- National Research Center “Kurchatov Institute,” Moscow, Russia
- Moscow Institute of Physics and Technology (National Research University), Dolgoprudny, Russia
| | - Ya. Ammosov
- National Research Center “Kurchatov Institute,” Moscow, Russia
- Moscow Institute of Physics and Technology (National Research University), Dolgoprudny, Russia
- RUDN University, Moscow, Russia
| | - A. Balashov
- National Research Center “Kurchatov Institute,” Moscow, Russia
| | - N. Butrova
- National Research Nuclear University MЕPhI, Moscow, Russia
| | - O. Krokhalev
- National Research Center “Kurchatov Institute,” Moscow, Russia
- Moscow Institute of Physics and Technology (National Research University), Dolgoprudny, Russia
| | - A. Loginov
- Moscow Institute of Physics and Technology (National Research University), Dolgoprudny, Russia
| | - A. Melnikov
- National Research Center “Kurchatov Institute,” Moscow, Russia
- Moscow Institute of Physics and Technology (National Research University), Dolgoprudny, Russia
- National Research Nuclear University MЕPhI, Moscow, Russia
| | | | - A. Stepin
- National Research Center “Kurchatov Institute,” Moscow, Russia
| | - A. Stolbov
- National Research Nuclear University MЕPhI, Moscow, Russia
| | - V. Svoboda
- Czech Technical University in Prague, Prague, Czech Republic
| | - S. Suntsov
- National Research Center “Kurchatov Institute,” Moscow, Russia
- National Research Nuclear University MЕPhI, Moscow, Russia
| | - G. Timkovskiy
- National Research Nuclear University MЕPhI, Moscow, Russia
| | | |
Collapse
|
8
|
Popova M, Ferlay A, Bougouin A, Eugène M, Martin C, Morgavi DP. Associating changes in the bacterial community of rumen and faeces and milk fatty acid profiles in dairy cows fed high-starch or starch and oil-supplemented diets. J DAIRY RES 2022; 89:1-10. [PMID: 36039952 DOI: 10.1017/s0022029922000498] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
The experiment reported in this research paper aimed to evaluate the effects of high-starch or starch and oil-supplemented diets on rumen and faecal bacteria, and explore links between the structure of bacterial communities and milk fatty acid (FA) profiles. We used four Holstein dairy cows in a 4 × 4 Latin square design. Cows were fed a diet rich in cereals (high-starch diet with 23% starch content on dry matter (DM) basis), a diet supplemented with saturated FA from Ca salts of palm oil + 18% DM starch, a diet with high content of monounsaturated FA (from extruded rapeseeds) + 18% DM starch or a diet rich in polyunsaturated FA (from extruded sunflower seeds) + 17% DM starch. At the end of each experimental period, cows were sampled for rumen and faecal contents, which were used for DNA extraction and amplicon sequencing. Partial least squares (PLS) regression analysis highlighted diet-related changes in both rumen and faecal bacterial structures. Sparse PLS discriminant analysis was further employed to identify biologically relevant operational taxonomical units (OTUs) driving these differences. Our results show that Butyrivibrio discriminated the high-starch diet and linked positively with higher concentrations of milk odd- and branched-chain FA. YS2-related OTUs were key taxa distinguishing diets supplemented with Ca salts of palm oil or sunflower seeds and correlated positively with linoleic acid in milk. Similarly, diets modulated faecal bacterial composition. However, correlations between changes in faecal and rumen bacteria were poor. With this work, we demonstrated that high-starch or lipid-supplemented diets affect rumen and faecal bacterial community structure, and these changes could have a knock-on effect on milk FA profiles.
Collapse
Affiliation(s)
- Milka Popova
- Université Clermont Auvergne, INRAE, VetAgro Sup, UMR Herbivores, F-63122 Saint-Genes-Champanelle, France
| | - Anne Ferlay
- Université Clermont Auvergne, INRAE, VetAgro Sup, UMR Herbivores, F-63122 Saint-Genes-Champanelle, France
| | - Adeline Bougouin
- Université Clermont Auvergne, INRAE, VetAgro Sup, UMR Herbivores, F-63122 Saint-Genes-Champanelle, France
| | - Maguy Eugène
- Université Clermont Auvergne, INRAE, VetAgro Sup, UMR Herbivores, F-63122 Saint-Genes-Champanelle, France
| | - Cécile Martin
- Université Clermont Auvergne, INRAE, VetAgro Sup, UMR Herbivores, F-63122 Saint-Genes-Champanelle, France
| | - Diego P Morgavi
- Université Clermont Auvergne, INRAE, VetAgro Sup, UMR Herbivores, F-63122 Saint-Genes-Champanelle, France
| |
Collapse
|
9
|
Sayd T, Chambon C, Popova M, Morgavi DP, Torrent A, Blinet S, Theron L, Niderkorn V. Impact of Tannin Supplementation on Proteolysis during Post-Ruminal Digestion in Wethers Using a Dynamic In Vitro System: A Plant ( Medicago sativa) Digestomic Approach. J Agric Food Chem 2022; 70:2221-2230. [PMID: 35157803 DOI: 10.1021/acs.jafc.1c07378] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
The aim of this study was to characterize the effects of tannins on plant protein during sheep digestion using a digestomic approach combining in vivo (rumen) conditions and an in vitro digestive system (abomasum and small intestine). Ruminal fluid from wethers infused with a tannin solution or water (control) was introduced into the digester, and protein degradation was followed by liquid chromatography-tandem mass spectrometry (LC-MS/MS). Tannin infusion in the rumen led to a clear decrease in protein degradation-related fermentation end-products, whereas ribulose-1,5-bisphosphate carboxylase/oxygenase (RuBisCo) protein was more abundant than in control wethers. In the simulated abomasum, peptidomic analysis showed more degradation products of RuBisCo in the presence of tannins. The effect of RuBisCo protection by tannins continued to impact Rubisco digestion into early-stage intestinal digestion but was no longer detectable in late-stage intestinal digestion. The peptidomics approach proved a potent tool for identifying and quantifying the type of protein hydrolyzed throughout the gastrointestinal tract.
Collapse
Affiliation(s)
- Thierry Sayd
- INRAE, UR 370, Qualité des Produits Animaux (QuaPA), Site de Theix, 63122 Saint-Genès-Champanelle, France
| | - Christophe Chambon
- INRAE, UR 370, Plateforme Exploration du Métabolisme (PFEM) composante protéomique, UR 370, Qualité des Produits Animaux (QuaPA), Site de Theix, 63122 Saint-Genès-Champanelle, France
| | - Milka Popova
- Université Clermont Auvergne, INRAE, VetAgro Sup, UMR Herbivores, F-63122 Saint-Genes-Champanelle, France
| | - Diego P Morgavi
- Université Clermont Auvergne, INRAE, VetAgro Sup, UMR Herbivores, F-63122 Saint-Genes-Champanelle, France
| | - Angélique Torrent
- Université Clermont Auvergne, INRAE, VetAgro Sup, UMR Herbivores, F-63122 Saint-Genes-Champanelle, France
| | - Sylvie Blinet
- INRAE, UR 370, Qualité des Produits Animaux (QuaPA), Site de Theix, 63122 Saint-Genès-Champanelle, France
| | - Laetitia Theron
- INRAE, UR 370, Qualité des Produits Animaux (QuaPA), Site de Theix, 63122 Saint-Genès-Champanelle, France
| | - Vincent Niderkorn
- Université Clermont Auvergne, INRAE, VetAgro Sup, UMR Herbivores, F-63122 Saint-Genes-Champanelle, France
| |
Collapse
|
10
|
Huuki H, Ahvenjärvi S, Lidauer P, Popova M, Vilkki J, Vanhatalo A, Tapio I. Fresh Rumen Liquid Inoculant Enhances the Rumen Microbial Community Establishment in Pre-weaned Dairy Calves. Front Microbiol 2022; 12:758395. [PMID: 35095788 PMCID: PMC8790516 DOI: 10.3389/fmicb.2021.758395] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/13/2021] [Accepted: 11/30/2021] [Indexed: 02/01/2023] Open
Abstract
The development of the functional rumen in calves involves a complex interplay between the host and host-related microbiome. Attempts to modulate rumen microbial community establishment may therefore have an impact on weaning success, calf health, and animal performance later in life. In this experiment, we aimed to elucidate how rumen liquid inoculum from an adult cow, provided to calves during the pre-weaning period, influences the establishment of rumen bacterial, archaeal, fungal, and ciliate protozoan communities in monozygotic twin calves (n = 6 pairs). The calves were divided into treatment (T-group) and control (C-group) groups, where the T-group received fresh rumen liquid as an oral inoculum during a 2-8-week period. The C-group was not inoculated. The rumen microbial community composition was determined using bacterial and archaeal 16S ribosomal RNA (rRNA) gene, protozoal 18S rRNA gene, and fungal ITS1 region amplicon sequencing. Animal weight gain and feed intake were monitored throughout the experiment. The T-group tended to have a higher concentrate intake (Treatment: p < 0.08) and had a significantly higher weekly weight gain (Treatment: p < 0.05), but no significant difference in volatile fatty acid concentrations between the groups was observed. In the T-group, the inoculum stimulated the earlier establishment of mature rumen-related bacterial taxa, affecting significant differences between the groups until 6 weeks of age. The inoculum also increased the archaeal operational taxonomic unit (OTU) diversity (Treatment: p < 0.05) but did not affect the archaeal quantity. Archaeal communities differed significantly between groups until week 4 (p = 0.02). Due to the inoculum, ciliate protozoa were detected in the T-group in week 2, while the C-group remained defaunated until 6 weeks of age. In week 8, Eremoplastron dilobum was the dominant ciliate protozoa in the C-group and Isotricha sp. in the T-group, respectively. The Shannon diversity of rumen anaerobic fungi reduced with age (Week: p < 0.01), and community establishment was influenced by a change of diet and potential interaction with other rumen microorganisms. Our results indicate that an adult cow rumen liquid inoculum enhanced the maturation of bacterial and archaeal communities in pre-weaning calves' rumen, whereas its effect on eukaryotic communities was less clear and requires further investigation.
Collapse
Affiliation(s)
- Hanna Huuki
- Department of Agricultural Sciences, University of Helsinki, Helsinki, Finland.,Production Systems, Genomics and Breeding, Natural Resources Institute Finland (Luke), Jokioinen, Finland
| | - Seppo Ahvenjärvi
- Production Systems, Animal Nutrition, Natural Resources Institute Finland (Luke), Jokioinen, Finland
| | - Paula Lidauer
- Production Systems, Welfare of Farmed Animals, Natural Resources Institute Finland (Luke), Jokioinen, Finland
| | - Milka Popova
- Institute National de la Recherche Agronomique, UMR 1213 Herbivores, Clermont Université, VetAgro Sup, UMR Herbivores, Clermont-Ferrand, France
| | - Johanna Vilkki
- Production Systems, Genomics and Breeding, Natural Resources Institute Finland (Luke), Jokioinen, Finland
| | - Aila Vanhatalo
- Department of Agricultural Sciences, University of Helsinki, Helsinki, Finland
| | - Ilma Tapio
- Production Systems, Genomics and Breeding, Natural Resources Institute Finland (Luke), Jokioinen, Finland
| |
Collapse
|
11
|
Fedorova L, Gusak A, Lepik K, Volkov N, Popova M, Moiseev I, Mikhailova N, Baykov V, Kulagin A. 832MO Immune microenvironment in classical Hodgkin lymphoma: Composition and dynamics in patients with relapsed/refractory disease. Ann Oncol 2021. [DOI: 10.1016/j.annonc.2021.08.125] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022] Open
|
12
|
Palma-Hidalgo JM, Jiménez E, Popova M, Morgavi DP, Martín-García AI, Yáñez-Ruiz DR, Belanche A. Inoculation with rumen fluid in early life accelerates the rumen microbial development and favours the weaning process in goats. Anim Microbiome 2021; 3:11. [PMID: 33499992 PMCID: PMC7814744 DOI: 10.1186/s42523-021-00073-9] [Citation(s) in RCA: 28] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/11/2020] [Accepted: 01/04/2021] [Indexed: 02/06/2023] Open
Abstract
BACKGROUND Newborn ruminants possess an underdeveloped rumen which is colonized by microorganisms acquired from adult animals and the surrounding environment. This microbial transfer can be limited in dairy systems in which newborns are separated from their dams at birth. This study explores whether the direct inoculation of fresh or autoclaved rumen fluid from adult goats to newborn kids has a beneficial effect on rumen microbial development and function. RESULTS Repetitive inoculation of young kids with fresh rumen fluid from adult goats adapted to forage (RFF) or concentrate diets (RFC) accelerated microbial colonization of the rumen during the pre-weaning period leading to high protozoal numbers, a greater diversity of bacterial (+ 234 OTUs), methanogens (+ 6 OTUs) and protozoal communities (+ 25 OTUs) than observed in control kids (CTL) without inoculation. This inoculation also increased the size of the core bacterial and methanogens community and the abundance of key rumen bacteria (Ruminococcaceae, Fibrobacteres, Veillonellaceae, Rikenellaceae, Tenericutes), methanogens (Methanobrevibacter ruminantium, Methanomicrobium mobile and Group 9), anaerobic fungi (Piromyces and Orpinomyces) and protozoal taxa (Enoploplastron, Diplodinium, Polyplastron, Ophryoscolex, Isotricha and Dasytricha) before weaning whereas CTL kids remained protozoa-free through the study. Most of these taxa were positively correlated with indicators of the rumen microbiological and physiological development (higher forage and concentrate intakes and animal growth during the post-weaning period) favoring the weaning process in RFF and RFC kids in comparison to CTL kids. Some of these microbiological differences tended to decrease during the post-weaning period, although RFF and RFC kids retained a more complex and matured rumen microbial ecosystem than CTL kids. Inoculation with autoclaved rumen fluid promoted lower development of the bacterial and protozoal communities during the pre-weaning period than using fresh inocula, but it favored a more rapid microbial development during the post-weaning than observed for CTL kids. CONCLUSIONS This study demonstrated that inoculation of young ruminants with fresh rumen fluid from adult animals accelerated the rumen microbial colonization which was associated with an earlier rumen functional development. This strategy facilitated a smoother transition from milk to solid feed favoring the animal performance during post-weaning and minimizing stress.
Collapse
Affiliation(s)
| | - Elisabeth Jiménez
- Estación Experimental del Zaidín (CSIC), Profesor Albareda 1, 18008 Granada, Spain
| | - Milka Popova
- Université Clermont Auvergne, INRAE, VetAgro Sup, UMR Herbivores, F-63122 Saint-Genès Champanelle, France
| | - Diego Pablo Morgavi
- Université Clermont Auvergne, INRAE, VetAgro Sup, UMR Herbivores, F-63122 Saint-Genès Champanelle, France
| | | | | | - Alejandro Belanche
- Estación Experimental del Zaidín (CSIC), Profesor Albareda 1, 18008 Granada, Spain
| |
Collapse
|
13
|
Popova M, Tsygankov I, Rogacheva Y, Lepik K, Zalylov Y, Stelmah L, Baykov V, Bondarenko S, Mikhaylova N. 892MO High-dose chemotherapy with autologous hematopoietic stem cell transplantation in patients with HIV-related lymphoma. Ann Oncol 2020. [DOI: 10.1016/j.annonc.2020.08.010] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022] Open
|
14
|
Rogacheva Y, Popova M, Siniaev A, Volkova A, Markova I, Nikolaev I, Pinegina O, Ignatieva S, Bogomolova T, Gevorgayn A, Paina O, Bykova T, Vlasova Y, Goloshchapov O, Vladovskaya M, Bondarenko S, Klimko N, Zubarovskaya L. 907P Invasive aspergillosis caused by aspergillus non-fumigatus in children and adults after hematopoietic stem cell transplantation (HSCT) & chemotherapy. Ann Oncol 2020. [DOI: 10.1016/j.annonc.2020.08.025] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022] Open
|
15
|
Li J, Zhong H, Ramayo-Caldas Y, Terrapon N, Lombard V, Potocki-Veronese G, Estellé J, Popova M, Yang Z, Zhang H, Li F, Tang S, Yang F, Chen W, Chen B, Li J, Guo J, Martin C, Maguin E, Xu X, Yang H, Wang J, Madsen L, Kristiansen K, Henrissat B, Ehrlich SD, Morgavi DP. A catalog of microbial genes from the bovine rumen unveils a specialized and diverse biomass-degrading environment. Gigascience 2020; 9:5849033. [PMID: 32473013 PMCID: PMC7260996 DOI: 10.1093/gigascience/giaa057] [Citation(s) in RCA: 27] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/02/2019] [Revised: 11/07/2019] [Accepted: 05/06/2020] [Indexed: 01/10/2023] Open
Abstract
Background The rumen microbiota provides essential services to its host and, through its role in ruminant production, contributes to human nutrition and food security. A thorough knowledge of the genetic potential of rumen microbes will provide opportunities for improving the sustainability of ruminant production systems. The availability of gene reference catalogs from gut microbiomes has advanced the understanding of the role of the microbiota in health and disease in humans and other mammals. In this work, we established a catalog of reference prokaryote genes from the bovine rumen. Results Using deep metagenome sequencing we identified 13,825,880 non-redundant prokaryote genes from the bovine rumen. Compared to human, pig, and mouse gut metagenome catalogs, the rumen is larger and richer in functions and microbial species associated with the degradation of plant cell wall material and production of methane. Genes encoding enzymes catalyzing the breakdown of plant polysaccharides showed a particularly high richness that is otherwise impossible to infer from available genomes or shallow metagenomics sequencing. The catalog expands the dataset of carbohydrate-degrading enzymes described in the rumen. Using an independent dataset from a group of 77 cattle fed 4 common dietary regimes, we found that only <0.1% of genes were shared by all animals, which contrast with a large overlap for functions, i.e., 63% for KEGG functions. Different diets induced differences in the relative abundance rather than the presence or absence of genes, which explains the great adaptability of cattle to rapidly adjust to dietary changes. Conclusions These data bring new insights into functions, carbohydrate-degrading enzymes, and microbes of the rumen to complement the available information on microbial genomes. The catalog is a significant biological resource enabling deeper understanding of phenotypes and biological processes and will be expanded as new data are made available.
Collapse
Affiliation(s)
- Junhua Li
- BGI-Shenzhen, Shenzhen 518083, China.,China National GeneBank, BGI-Shenzhen, Shenzhen 518120, China.,School of Biology and Biological Engineering, South China University of Technology, Guangzhou 510006, China
| | - Huanzi Zhong
- BGI-Shenzhen, Shenzhen 518083, China.,China National GeneBank, BGI-Shenzhen, Shenzhen 518120, China.,Laboratory of Genomics and Molecular Biomedicine, Department of Biology, University of Copenhagen, 2100 Copenhagen Ø, Denmark
| | - Yuliaxis Ramayo-Caldas
- INRAE, Génétique Animale et Biologie Intégrative, AgroParisTech, Université Paris-Saclay, 78350 Jouy-en-Josas, France.,Animal Breeding and Genetics Program, Institute for Research and Technology in Food and Agriculture (IRTA), Torre Marimon, Caldes de Montbui 08140, Spain
| | - Nicolas Terrapon
- CNRS UMR 7257, Aix-Marseille University, 13288 Marseille, France.,INRAE, USC 1408 AFMB, 13288 Marseille, France
| | - Vincent Lombard
- CNRS UMR 7257, Aix-Marseille University, 13288 Marseille, France.,INRAE, USC 1408 AFMB, 13288 Marseille, France
| | | | - Jordi Estellé
- INRAE, Génétique Animale et Biologie Intégrative, AgroParisTech, Université Paris-Saclay, 78350 Jouy-en-Josas, France
| | - Milka Popova
- Université Clermont Auvergne, INRAE, VetAgro Sup, UMR Herbivores, F-63122 Saint-Genès Champanelle, France
| | - Ziyi Yang
- BGI-Shenzhen, Shenzhen 518083, China.,China National GeneBank, BGI-Shenzhen, Shenzhen 518120, China
| | - Hui Zhang
- BGI-Shenzhen, Shenzhen 518083, China.,China National GeneBank, BGI-Shenzhen, Shenzhen 518120, China
| | - Fang Li
- BGI-Shenzhen, Shenzhen 518083, China.,China National GeneBank, BGI-Shenzhen, Shenzhen 518120, China
| | - Shanmei Tang
- BGI-Shenzhen, Shenzhen 518083, China.,China National GeneBank, BGI-Shenzhen, Shenzhen 518120, China
| | - Fangming Yang
- BGI-Shenzhen, Shenzhen 518083, China.,School of Future Technology, University of Chinese Academy of Sciences, Beijing 101408, China
| | | | - Bing Chen
- BGI-Shenzhen, Shenzhen 518083, China.,China National GeneBank, BGI-Shenzhen, Shenzhen 518120, China
| | - Jiyang Li
- BGI-Shenzhen, Shenzhen 518083, China
| | - Jing Guo
- BGI-Shenzhen, Shenzhen 518083, China.,China National GeneBank, BGI-Shenzhen, Shenzhen 518120, China
| | - Cécile Martin
- Université Clermont Auvergne, INRAE, VetAgro Sup, UMR Herbivores, F-63122 Saint-Genès Champanelle, France
| | - Emmanuelle Maguin
- INRAE, Micalis Institute, AgroParisTech, Université Paris-Saclay, 78350 Jouy-en-Josas, France
| | - Xun Xu
- BGI-Shenzhen, Shenzhen 518083, China.,China National GeneBank, BGI-Shenzhen, Shenzhen 518120, China
| | - Huanming Yang
- BGI-Shenzhen, Shenzhen 518083, China.,James D. Watson Institute of Genome Sciences, Hangzhou 310058, China
| | - Jian Wang
- BGI-Shenzhen, Shenzhen 518083, China.,James D. Watson Institute of Genome Sciences, Hangzhou 310058, China
| | - Lise Madsen
- BGI-Shenzhen, Shenzhen 518083, China.,Laboratory of Genomics and Molecular Biomedicine, Department of Biology, University of Copenhagen, 2100 Copenhagen Ø, Denmark.,Institute of Marine Research (IMR), Postboks 1870 Nordnes, 5817 Bergen, Norway
| | - Karsten Kristiansen
- BGI-Shenzhen, Shenzhen 518083, China.,Laboratory of Genomics and Molecular Biomedicine, Department of Biology, University of Copenhagen, 2100 Copenhagen Ø, Denmark
| | - Bernard Henrissat
- CNRS UMR 7257, Aix-Marseille University, 13288 Marseille, France.,INRAE, USC 1408 AFMB, 13288 Marseille, France.,Department of Biological Sciences, King Abdulaziz University, Jeddah, Saudi Arabia
| | - Stanislav D Ehrlich
- BGI-Shenzhen, Shenzhen 518083, China.,MGP MetaGenoPolis, INRAE, Université Paris-Saclay, 78350 Jouy en Josas, France.,Centre for Host Microbiome Interactions, Dental Institute, King's College London, London, UK
| | - Diego P Morgavi
- BGI-Shenzhen, Shenzhen 518083, China.,Université Clermont Auvergne, INRAE, VetAgro Sup, UMR Herbivores, F-63122 Saint-Genès Champanelle, France
| |
Collapse
|
16
|
Crvenkova S, Popova M. Acute Esophageal Damage in Patients with Inoperable Non-small Cell Lung Cancer Treated with Concurrent and Sequential Chemoradiotherapy. Open Access Maced J Med Sci 2020. [DOI: 10.3889/oamjms.2020.4281] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022] Open
Abstract
BACKGROUND: Acute esophageal damage may be a dose-limited factor for application the full planning radiotherapy (RT) dose in patients with inoperable non-small cell lung cancer (NSCLC). A combination of chemotherapy and RT may increase esophageal toxicity, but three-dimensional (3D) conformal RT offers better sparing of the organs at risk.
AIM: The purpose of this study was to show the incidence and degree of acute esophageal damage in lung cancer patients treated with sequential and concurrent chemoradiotherapy.
MATERIALS AND METHODS: The total number was 73 patients, of whom 26 (34.7%) had previously received sequential chemotherapy with a four-cycle followed by RT. In the second concurrent group, 47 (65.3%) patients were received concomitant chemotherapy and RT.
RESULTS: Of the 73 patients included in the study, 43 (57.3%) did not present any grade of esophagitis during the treatment. In the sequential group, 73.1% presented no esophagitis and in the concurrent group, 49%, respectively. Although there were differences between the two groups, none were statistically significant.
CONCLUSIONS: The reason for the good tolerability of the combination of chemotherapy and RT for inoperable NSCLC patients was using 3D conformal RT. Further improvements may be obtained with more sophisticated RT or radioprotective drugs.
Collapse
|
17
|
Ramayo‐Caldas Y, Zingaretti L, Popova M, Estellé J, Bernard A, Pons N, Bellot P, Mach N, Rau A, Roume H, Perez‐Enciso M, Faverdin P, Edouard N, Ehrlich D, Morgavi DP, Renand G. Identification of rumen microbial biomarkers linked to methane emission in Holstein dairy cows. J Anim Breed Genet 2020; 137:49-59. [PMID: 31418488 PMCID: PMC6972549 DOI: 10.1111/jbg.12427] [Citation(s) in RCA: 41] [Impact Index Per Article: 10.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/02/2019] [Revised: 07/12/2019] [Accepted: 07/13/2019] [Indexed: 12/29/2022]
Abstract
Mitigation of greenhouse gas emissions is relevant for reducing the environmental impact of ruminant production. In this study, the rumen microbiome from Holstein cows was characterized through a combination of 16S rRNA gene and shotgun metagenomic sequencing. Methane production (CH4 ) and dry matter intake (DMI) were individually measured over 4-6 weeks to calculate the CH4 yield (CH4 y = CH4 /DMI) per cow. We implemented a combination of clustering, multivariate and mixed model analyses to identify a set of operational taxonomic unit (OTU) jointly associated with CH4 y and the structure of ruminal microbial communities. Three ruminotype clusters (R1, R2 and R3) were identified, and R2 was associated with higher CH4 y. The taxonomic composition on R2 had lower abundance of Succinivibrionaceae and Methanosphaera, and higher abundance of Ruminococcaceae, Christensenellaceae and Lachnospiraceae. Metagenomic data confirmed the lower abundance of Succinivibrionaceae and Methanosphaera in R2 and identified genera (Fibrobacter and unclassified Bacteroidales) not highlighted by metataxonomic analysis. In addition, the functional metagenomic analysis revealed that samples classified in cluster R2 were overrepresented by genes coding for KEGG modules associated with methanogenesis, including a significant relative abundance of the methyl-coenzyme M reductase enzyme. Based on the cluster assignment, we applied a sparse partial least-squares discriminant analysis at the taxonomic and functional levels. In addition, we implemented a sPLS regression model using the phenotypic variation of CH4 y. By combining these two approaches, we identified 86 discriminant bacterial OTUs, notably including families linked to CH4 emission such as Succinivibrionaceae, Ruminococcaceae, Christensenellaceae, Lachnospiraceae and Rikenellaceae. These selected OTUs explained 24% of the CH4 y phenotypic variance, whereas the host genome contribution was ~14%. In summary, we identified rumen microbial biomarkers associated with the methane production of dairy cows; these biomarkers could be used for targeted methane-reduction selection programmes in the dairy cattle industry provided they are heritable.
Collapse
Affiliation(s)
- Yuliaxis Ramayo‐Caldas
- UMR 1313 GABIINRA, AgroParisTech, Université Paris‐SaclayJouy‐en‐JosasFrance
- Animal Breeding and Genetics ProgramIRTA Torre MarimonCaldes de MontbuiSpain
| | | | - Milka Popova
- VetAgro Sup, UMR 1213 HerbivoresINRA, Université Clermont AuvergneSaint‐Genès‐ChampanelleFrance
| | - Jordi Estellé
- UMR 1313 GABIINRA, AgroParisTech, Université Paris‐SaclayJouy‐en‐JosasFrance
| | - Aurelien Bernard
- VetAgro Sup, UMR 1213 HerbivoresINRA, Université Clermont AuvergneSaint‐Genès‐ChampanelleFrance
| | | | - Pau Bellot
- Department of Animal Genetics, CRAGUABBellaterraSpain
| | - Núria Mach
- UMR 1313 GABIINRA, AgroParisTech, Université Paris‐SaclayJouy‐en‐JosasFrance
| | - Andrea Rau
- UMR 1313 GABIINRA, AgroParisTech, Université Paris‐SaclayJouy‐en‐JosasFrance
| | - Hugo Roume
- INRA METAGENOPOLIS UnitJouy‐en‐JosasFrance
| | | | | | | | | | - Diego P. Morgavi
- VetAgro Sup, UMR 1213 HerbivoresINRA, Université Clermont AuvergneSaint‐Genès‐ChampanelleFrance
| | - Gilles Renand
- UMR 1313 GABIINRA, AgroParisTech, Université Paris‐SaclayJouy‐en‐JosasFrance
| |
Collapse
|
18
|
Muñoz-Tamayo R, Popova M, Tillier M, Morgavi DP, Morel JP, Fonty G, Morel-Desrosiers N. Hydrogenotrophic methanogens of the mammalian gut: Functionally similar, thermodynamically different-A modelling approach. PLoS One 2019; 14:e0226243. [PMID: 31826000 PMCID: PMC6905546 DOI: 10.1371/journal.pone.0226243] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/11/2019] [Accepted: 11/24/2019] [Indexed: 12/11/2022] Open
Abstract
Methanogenic archaea occupy a functionally important niche in the gut microbial ecosystem of mammals. Our purpose was to quantitatively characterize the dynamics of methanogenesis by integrating microbiology, thermodynamics and mathematical modelling. For that, in vitro growth experiments were performed with pure cultures of key methanogens from the human and ruminant gut, namely Methanobrevibacter smithii, Methanobrevibacter ruminantium and Methanobacterium formicium. Microcalorimetric experiments were performed to quantify the methanogenesis heat flux. We constructed an energetic-based mathematical model of methanogenesis. Our model captured efficiently the dynamics of methanogenesis with average concordance correlation coefficients of 0.95 for CO2, 0.98 for H2 and 0.97 for CH4. Together, experimental data and model enabled us to quantify metabolism kinetics and energetic patterns that were specific and distinct for each species despite their use of analogous methane-producing pathways. Then, we tested in silico the interactions between these methanogens under an in vivo simulation scenario using a theoretical modelling exercise. In silico simulations suggest that the classical competitive exclusion principle is inapplicable to gut ecosystems and that kinetic information alone cannot explain gut ecological aspects such as microbial coexistence. We suggest that ecological models of gut ecosystems require the integration of microbial kinetics with nonlinear behaviours related to spatial and temporal variations taking place in mammalian guts. Our work provides novel information on the thermodynamics and dynamics of methanogens. This understanding will be useful to construct new gut models with enhanced prediction capabilities and could have practical applications for promoting gut health in mammals and mitigating ruminant methane emissions.
Collapse
Affiliation(s)
- Rafael Muñoz-Tamayo
- UMR Modélisation Systémique Appliquée aux Ruminants, INRA, AgroParisTech, Université Paris-Saclay, Paris, France
- * E-mail:
| | - Milka Popova
- Institute National de la Recherche Agronomique, UMR1213 Herbivores, Clermont Université, VetAgro Sup, UMR Herbivores, Clermont-Ferrand, France
| | - Maxence Tillier
- Institute National de la Recherche Agronomique, UMR1213 Herbivores, Clermont Université, VetAgro Sup, UMR Herbivores, Clermont-Ferrand, France
| | - Diego P. Morgavi
- Institute National de la Recherche Agronomique, UMR1213 Herbivores, Clermont Université, VetAgro Sup, UMR Herbivores, Clermont-Ferrand, France
| | | | - Gérard Fonty
- Université Clermont Auvergne, CNRS, LMGE, Clermont-Ferrand, France
| | | |
Collapse
|
19
|
Rogacheva Y, Popova M, Lepik K, Kondakova E, Zalyalov Y, Stelmah L, Volkova A, Nikolaev I, Goloshchapov O, Barhatov I, Bondarenko S, Moiseev I, Baykov V, Mikhailova N, Klimko N, Afanasyev B. Influence of nivolumab on epidemiology of infectious complications in patients with relapse or refractory Hodgkin’s lymphoma. Ann Oncol 2019. [DOI: 10.1093/annonc/mdz449.017] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
|
20
|
Popova M, Rogacheva Y, Tsygankov I, Lepik K, Zalyalov Y, Stelmakh L, Moiseev I, Bondarenko S, Mikhaylova N, Baykov V, Afanasyev B. Immunotherapy in patients with relapsed/refractory HIV-related lymphomas. Ann Oncol 2019. [DOI: 10.1093/annonc/mdz449.015] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
|
21
|
Popova M, Rogacheva Y, Volkova A, Markova I, Nikolaev I, Ignatieva S, Bogomolova T, Kozlov A, Lepik K, Stelmakh L, Beynarovich A, Borzenkova E, Darskaya E, Kondakova E, Mikhailova N, Bondarenko S, Moiseev I, Zubarovskaya L, Klimko N, Afanasyev B. Invasive fungal diseases in patients with Hodgkin’s lymphoma before and after allogeneic hematopoietic stem cell transplantation. Ann Oncol 2019. [DOI: 10.1093/annonc/mdz251.024] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
|
22
|
Rogacheva Y, Popova M, Volkova A, Frolova A, Markova I, Nikolaev I, Ignatieva S, Bogomolova T, Gevorgian A, Paina O, Bykova T, Darskaya E, Goloshchapov O, Morozova E, Vladovskaya M, Bondarenko S, Moiseev I, Zubarovskaya L, Klimko N, Afanasyev B. Invasive fungal diseases caused by rare pathogens in patients after hematopoietic stem cell transplantation (HSCT) & chemotherapy. Ann Oncol 2019. [DOI: 10.1093/annonc/mdz251.025] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
|
23
|
Rogacheva Y, Popova M, Lepik K, Kondakova E, Zalyalov Y, Stelmah L, Volkova A, Nikolaev I, Goloshchapov O, Barhatov I, Bondarenko S, Moiseev I, Baykov V, Mikhailova N, Klimko N, Afanasyev B. INFECTIOUS COMPLICATIONS OF NIVOLUMAB THERAPY IN RELAPSED/REFRACTORY HODGKIN'S LYMPHOMA. Hematol Oncol 2019. [DOI: 10.1002/hon.184_2631] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Y. Rogacheva
- Oncology; Raisa Gorbacheva Memorial Research Institute of Children Oncology, Hematology and Transplantation, First Pavlov State Medical University of St. Petersburg, Ministry of Health of Russia; Saint Petersburg Russian Federation
| | - M. Popova
- Oncology; Raisa Gorbacheva Memorial Research Institute of Children Oncology, Hematology and Transplantation, First Pavlov State Medical University of St. Petersburg, Ministry of Health of Russia; Saint Petersburg Russian Federation
| | - K. Lepik
- Oncology; Raisa Gorbacheva Memorial Research Institute of Children Oncology, Hematology and Transplantation, First Pavlov State Medical University of St. Petersburg, Ministry of Health of Russia; Saint Petersburg Russian Federation
| | - E. Kondakova
- Oncology; Raisa Gorbacheva Memorial Research Institute of Children Oncology, Hematology and Transplantation, First Pavlov State Medical University of St. Petersburg, Ministry of Health of Russia; Saint Petersburg Russian Federation
| | - Y. Zalyalov
- Oncology; Raisa Gorbacheva Memorial Research Institute of Children Oncology, Hematology and Transplantation, First Pavlov State Medical University of St. Petersburg, Ministry of Health of Russia; Saint Petersburg Russian Federation
| | - L. Stelmah
- Oncology; Raisa Gorbacheva Memorial Research Institute of Children Oncology, Hematology and Transplantation, First Pavlov State Medical University of St. Petersburg, Ministry of Health of Russia; Saint Petersburg Russian Federation
| | - A. Volkova
- Oncology; Raisa Gorbacheva Memorial Research Institute of Children Oncology, Hematology and Transplantation, First Pavlov State Medical University of St. Petersburg, Ministry of Health of Russia; Saint Petersburg Russian Federation
| | - I. Nikolaev
- Oncology; Raisa Gorbacheva Memorial Research Institute of Children Oncology, Hematology and Transplantation, First Pavlov State Medical University of St. Petersburg, Ministry of Health of Russia; Saint Petersburg Russian Federation
| | - O. Goloshchapov
- Oncology; Raisa Gorbacheva Memorial Research Institute of Children Oncology, Hematology and Transplantation, First Pavlov State Medical University of St. Petersburg, Ministry of Health of Russia; Saint Petersburg Russian Federation
| | - I. Barhatov
- Oncology; Raisa Gorbacheva Memorial Research Institute of Children Oncology, Hematology and Transplantation, First Pavlov State Medical University of St. Petersburg, Ministry of Health of Russia; Saint Petersburg Russian Federation
| | - S. Bondarenko
- Oncology; Raisa Gorbacheva Memorial Research Institute of Children Oncology, Hematology and Transplantation, First Pavlov State Medical University of St. Petersburg, Ministry of Health of Russia; Saint Petersburg Russian Federation
| | - I. Moiseev
- Oncology; Raisa Gorbacheva Memorial Research Institute of Children Oncology, Hematology and Transplantation, First Pavlov State Medical University of St. Petersburg, Ministry of Health of Russia; Saint Petersburg Russian Federation
| | - V. Baykov
- Oncology; Raisa Gorbacheva Memorial Research Institute of Children Oncology, Hematology and Transplantation, First Pavlov State Medical University of St. Petersburg, Ministry of Health of Russia; Saint Petersburg Russian Federation
| | - N. Mikhailova
- Oncology; Raisa Gorbacheva Memorial Research Institute of Children Oncology, Hematology and Transplantation, First Pavlov State Medical University of St. Petersburg, Ministry of Health of Russia; Saint Petersburg Russian Federation
| | - N. Klimko
- Mycology; I.I. Mechnikov North-Western State Medical University, Ministry of Health of Russia; Saint Petersburg Russian Federation
| | - B. Afanasyev
- Oncology; Raisa Gorbacheva Memorial Research Institute of Children Oncology, Hematology and Transplantation, First Pavlov State Medical University of St. Petersburg, Ministry of Health of Russia; Saint Petersburg Russian Federation
| |
Collapse
|
24
|
Jeyanathan J, Martin C, Eugène M, Ferlay A, Popova M, Morgavi DP. Bacterial direct-fed microbials fail to reduce methane emissions in primiparous lactating dairy cows. J Anim Sci Biotechnol 2019; 10:41. [PMID: 31069075 PMCID: PMC6495644 DOI: 10.1186/s40104-019-0342-9] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2018] [Accepted: 03/11/2019] [Indexed: 02/07/2023] Open
Abstract
Direct-fed microbials (DFM) are considered as a promising technique to improve animal productivity without affecting animal health or harming the environment. The potential of three bacterial DFM to reduce methane (CH4) emissions, modulate ruminal fermentation, milk production and composition of primiparous dairy cows was examined in this study. As previous reports have shown that DFM respond differently to different diets, two contrasting diets were used in this study. Eight lactating primiparous cows were randomly divided into two groups that were fed a corn silage-based, high-starch diet (HSD) or a grass silage-based, high-fiber diet (HFD). Cows in each dietary group were randomly assigned to four treatments in a 4 × 4 Latin square design. The bacterial DFM used were selected for their proven CH4-reducing effect in vitro. Treatments included control (without DFM) and 3 DFM treatments: Propionibacterium freudenreichii 53-W (2.9 × 1010 colony forming units (CFU)/cow per day), Lactobacillus pentosus D31 (3.6 × 1011 CFU/cow per day) and Lactobacillus bulgaricus D1 (4.6 × 1010 CFU/cow per day). Each experimental period included 4 weeks of treatment and 1 week of wash-out, with measures performed in the fourth week of the treatment period. Enteric CH4 emissions were measured during 3 consecutive days using respiration chambers. Rumen samples were collected for ruminal fermentation parameters and quantitative microbial analyses. Milk samples were collected for composition analysis. Body weight of cows were recorded at the end of each treatment period. Irrespective of diet, no mitigating effect of DFM was observed on CH4 emissions in dairy cows. In contrast, Propionibacterium increased CH4 intensity by 27% (g CH4/kg milk) in cows fed HSD. There was no effect of DFM on other fermentation parameters and on bacterial, archaeal and protozoal numbers. Similarly, the effect of DFM on milk fatty acid composition was negligible. Propionibacterium and L. pentosus DFM tended to increase body weight gain with HSD. We conclude that, contrary to the effect previously observed in vitro, bacterial DFM Propionibacterium freudenreichii 53-W, Lactobacillus pentosus D31 and Lactobacillus bulgaricus D1 did not alter ruminal fermentation and failed to reduce CH4 emissions in lactating primiparous cows fed high-starch or high-fiber diets.
Collapse
Affiliation(s)
- Jeyamalar Jeyanathan
- Université Clermont Auvergne, INRA, VetAgro Sup, UMR 1213 Herbivores, F-63122 Saint-Genès-Champanelle, France.,2Present address: Laboratory for Animal Nutrition and Animal Product Quality, Faculty of Bioscience Engineering, Ghent University, Coupure Links 653, 9000 Ghent, Belgium
| | - Cécile Martin
- Université Clermont Auvergne, INRA, VetAgro Sup, UMR 1213 Herbivores, F-63122 Saint-Genès-Champanelle, France
| | - Maguy Eugène
- Université Clermont Auvergne, INRA, VetAgro Sup, UMR 1213 Herbivores, F-63122 Saint-Genès-Champanelle, France
| | - Anne Ferlay
- Université Clermont Auvergne, INRA, VetAgro Sup, UMR 1213 Herbivores, F-63122 Saint-Genès-Champanelle, France
| | - Milka Popova
- Université Clermont Auvergne, INRA, VetAgro Sup, UMR 1213 Herbivores, F-63122 Saint-Genès-Champanelle, France
| | - Diego P Morgavi
- Université Clermont Auvergne, INRA, VetAgro Sup, UMR 1213 Herbivores, F-63122 Saint-Genès-Champanelle, France
| |
Collapse
|
25
|
Klimko N, Khostelidi S, Shadrivova O, Volkova A, Popova M, Uspenskaya O, Shneyder T, Bogomolova T, Ignatyeva S, Zubarovskaya L, Afanasyev B. Contrasts between mucormycosis and aspergillosis in oncohematological patients. Med Mycol 2019; 57:S138-S144. [DOI: 10.1093/mmy/myy116] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/26/2018] [Revised: 09/06/2018] [Accepted: 10/17/2018] [Indexed: 12/30/2022] Open
Affiliation(s)
- N Klimko
- I.Mechnikov North-Western State Medical University, 1/28 Santiago de Cuba str., St. Petersburg, Russian Federation, 194291
| | - S Khostelidi
- I.Mechnikov North-Western State Medical University, 1/28 Santiago de Cuba str., St. Petersburg, Russian Federation, 194291
| | - O Shadrivova
- I.Mechnikov North-Western State Medical University, 1/28 Santiago de Cuba str., St. Petersburg, Russian Federation, 194291
| | - A Volkova
- I.P.Pavlov First Saint Petersburg State Medical University, 6–8 L’va Tolstogo str., Saint Petersburg, Russian Federation, 197022
| | - M Popova
- I.P.Pavlov First Saint Petersburg State Medical University, 6–8 L’va Tolstogo str., Saint Petersburg, Russian Federation, 197022
| | - O Uspenskaya
- Leningrad Regional Clinical Hospital, 45 Lunacharskogo prospect, St. Petersburg, Russian Federation, 197022
| | - T Shneyder
- Leningrad Regional Clinical Hospital, 45 Lunacharskogo prospect, St. Petersburg, Russian Federation, 197022
| | - T Bogomolova
- I.Mechnikov North-Western State Medical University, 1/28 Santiago de Cuba str., St. Petersburg, Russian Federation, 194291
| | - S Ignatyeva
- I.Mechnikov North-Western State Medical University, 1/28 Santiago de Cuba str., St. Petersburg, Russian Federation, 194291
| | - L Zubarovskaya
- I.P.Pavlov First Saint Petersburg State Medical University, 6–8 L’va Tolstogo str., Saint Petersburg, Russian Federation, 197022
| | - B Afanasyev
- I.P.Pavlov First Saint Petersburg State Medical University, 6–8 L’va Tolstogo str., Saint Petersburg, Russian Federation, 197022
| |
Collapse
|
26
|
Rogacheva Y, Popova M, Nekrasova A, Tsygankov I, Lepik K, Stelmah L, Moiseev I, Bondarenko S, Mikhaylova N, Baykov V, Afanasyev B. Nivolumab treatment in patients with relapsed/refractory HIV-related lymphomas. Ann Oncol 2018. [DOI: 10.1093/annonc/mdy486.011] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
|
27
|
Huws SA, Creevey CJ, Oyama LB, Mizrahi I, Denman SE, Popova M, Muñoz-Tamayo R, Forano E, Waters SM, Hess M, Tapio I, Smidt H, Krizsan SJ, Yáñez-Ruiz DR, Belanche A, Guan L, Gruninger RJ, McAllister TA, Newbold CJ, Roehe R, Dewhurst RJ, Snelling TJ, Watson M, Suen G, Hart EH, Kingston-Smith AH, Scollan ND, do Prado RM, Pilau EJ, Mantovani HC, Attwood GT, Edwards JE, McEwan NR, Morrisson S, Mayorga OL, Elliott C, Morgavi DP. Addressing Global Ruminant Agricultural Challenges Through Understanding the Rumen Microbiome: Past, Present, and Future. Front Microbiol 2018; 9:2161. [PMID: 30319557 PMCID: PMC6167468 DOI: 10.3389/fmicb.2018.02161] [Citation(s) in RCA: 170] [Impact Index Per Article: 28.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2018] [Accepted: 08/23/2018] [Indexed: 12/24/2022] Open
Abstract
The rumen is a complex ecosystem composed of anaerobic bacteria, protozoa, fungi, methanogenic archaea and phages. These microbes interact closely to breakdown plant material that cannot be digested by humans, whilst providing metabolic energy to the host and, in the case of archaea, producing methane. Consequently, ruminants produce meat and milk, which are rich in high-quality protein, vitamins and minerals, and therefore contribute to food security. As the world population is predicted to reach approximately 9.7 billion by 2050, an increase in ruminant production to satisfy global protein demand is necessary, despite limited land availability, and whilst ensuring environmental impact is minimized. Although challenging, these goals can be met, but depend on our understanding of the rumen microbiome. Attempts to manipulate the rumen microbiome to benefit global agricultural challenges have been ongoing for decades with limited success, mostly due to the lack of a detailed understanding of this microbiome and our limited ability to culture most of these microbes outside the rumen. The potential to manipulate the rumen microbiome and meet global livestock challenges through animal breeding and introduction of dietary interventions during early life have recently emerged as promising new technologies. Our inability to phenotype ruminants in a high-throughput manner has also hampered progress, although the recent increase in “omic” data may allow further development of mathematical models and rumen microbial gene biomarkers as proxies. Advances in computational tools, high-throughput sequencing technologies and cultivation-independent “omics” approaches continue to revolutionize our understanding of the rumen microbiome. This will ultimately provide the knowledge framework needed to solve current and future ruminant livestock challenges.
Collapse
Affiliation(s)
- Sharon A Huws
- Institute for Global Food Security, Queen's University of Belfast, Belfast, United Kingdom
| | - Christopher J Creevey
- Institute for Global Food Security, Queen's University of Belfast, Belfast, United Kingdom
| | - Linda B Oyama
- Institute for Global Food Security, Queen's University of Belfast, Belfast, United Kingdom
| | - Itzhak Mizrahi
- Department of Life Sciences and the National Institute for Biotechnology in the Negev, Ben Gurion University of the Negev, Beer Sheva, Israel
| | - Stuart E Denman
- Commonwealth Scientific and Industrial Research Organisation Agriculture and Food, Queensland Bioscience Precinct, St Lucia, QLD, Australia
| | - Milka Popova
- Institute National de la Recherche Agronomique, UMR1213 Herbivores, Clermont Université, VetAgro Sup, UMR Herbivores, Clermont-Ferrand, France
| | - Rafael Muñoz-Tamayo
- UMR Modélisation Systémique Appliquée aux Ruminants, INRA, AgroParisTech, Université Paris-Saclay, Paris, France
| | - Evelyne Forano
- UMR 454 MEDIS, INRA, Université Clermont Auvergne, Clermont-Ferrand, France
| | - Sinead M Waters
- Animal and Bioscience Research Department, Animal and Grassland Research and Innovation Centre, Grange, Ireland
| | - Matthias Hess
- College of Agricultural and Environmental Sciences, University of California, Davis, Davis, CA, United States
| | - Ilma Tapio
- Natural Resources Institute Finland, Jokioinen, Finland
| | - Hauke Smidt
- Department of Agrotechnology and Food Sciences, Wageningen, Netherlands
| | - Sophie J Krizsan
- Department of Agricultural Research for Northern Sweden, Swedish University of Agricultural Sciences, Umeå, Sweden
| | - David R Yáñez-Ruiz
- Estacion Experimental del Zaidin, Consejo Superior de Investigaciones Cientificas, Granada, Spain
| | - Alejandro Belanche
- Estacion Experimental del Zaidin, Consejo Superior de Investigaciones Cientificas, Granada, Spain
| | - Leluo Guan
- Department of Agricultural, Food and Nutritional Science, University of Alberta, Edmonton, AB, Canada
| | - Robert J Gruninger
- Lethbridge Research Centre, Agriculture and Agri-Food Canada, Lethbridge, AB, Canada
| | - Tim A McAllister
- Lethbridge Research Centre, Agriculture and Agri-Food Canada, Lethbridge, AB, Canada
| | | | - Rainer Roehe
- Scotland's Rural College, Edinburgh, United Kingdom
| | | | - Tim J Snelling
- The Rowett Institute, University of Aberdeen, Aberdeen, United Kingdom
| | - Mick Watson
- The Roslin Institute and the Royal (Dick) School of Veterinary Studies (R(D)SVS), University of Edinburgh, Edinburgh, United Kingdom
| | - Garret Suen
- Department of Bacteriology, University of Wisconsin-Madison, Madison, WI, United States
| | - Elizabeth H Hart
- Institute of Biological, Environmental and Rural Sciences, Aberystwyth University, Aberystwyth, United Kingdom
| | - Alison H Kingston-Smith
- Institute of Biological, Environmental and Rural Sciences, Aberystwyth University, Aberystwyth, United Kingdom
| | - Nigel D Scollan
- Institute for Global Food Security, Queen's University of Belfast, Belfast, United Kingdom
| | - Rodolpho M do Prado
- Laboratório de Biomoléculas e Espectrometria de Massas-Labiomass, Departamento de Química, Universidade Estadual de Maringá, Maringá, Brazil
| | - Eduardo J Pilau
- Laboratório de Biomoléculas e Espectrometria de Massas-Labiomass, Departamento de Química, Universidade Estadual de Maringá, Maringá, Brazil
| | | | - Graeme T Attwood
- AgResearch Limited, Grasslands Research Centre, Palmerston North, New Zealand
| | - Joan E Edwards
- Laboratory of Microbiology, Wageningen University & Research, Wageningen, Netherlands
| | - Neil R McEwan
- School of Pharmacy and Life Sciences, Robert Gordon University, Aberdeen, United Kingdom
| | - Steven Morrisson
- Sustainable Livestock, Agri-Food and Bio-Sciences Institute, Hillsborough, United Kingdom
| | - Olga L Mayorga
- Colombian Agricultural Research Corporation, Mosquera, Colombia
| | - Christopher Elliott
- Institute for Global Food Security, Queen's University of Belfast, Belfast, United Kingdom
| | - Diego P Morgavi
- Institute National de la Recherche Agronomique, UMR1213 Herbivores, Clermont Université, VetAgro Sup, UMR Herbivores, Clermont-Ferrand, France
| |
Collapse
|
28
|
Saro C, Hohenester UM, Bernard M, Lagrée M, Martin C, Doreau M, Boudra H, Popova M, Morgavi DP. Effectiveness of Interventions to Modulate the Rumen Microbiota Composition and Function in Pre-ruminant and Ruminant Lambs. Front Microbiol 2018; 9:1273. [PMID: 29967596 PMCID: PMC6015893 DOI: 10.3389/fmicb.2018.01273] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/26/2018] [Accepted: 05/24/2018] [Indexed: 11/24/2022] Open
Abstract
Modulating the assembly of the ruminal microbiota might have practical implications in production. We tested how an early-life dietary intervention in lambs influences the diversity and function of the ruminal microbiota during and after the intervention. Microbiota resilience during a repeated dietary intervention was also tested. The treatment, aiming to mitigate enteric methane emissions, combined garlic essential oil and linseed oil. Fifty-six lambs and their dams were allocated to two groups and treatment (T1) or placebo (C1) was drenched from birth until 10 weeks of life. Lambs were weaned at 8 weeks. From 16 to 20 weeks, lambs in each group were divided in two subgroups that received (T1–T2 and C1–T2) or not (T1–C2 and C1–C2) the same treatment. Measurements were done at 8, 14, and 20 weeks. Average daily gain was similar between groups. Methane production was reduced by treatment at 8 and 20 weeks but at 14 weeks it was similar between C1 and T1. Interestingly, early-life treated lambs displayed a numerical increase (P = 0.12) in methane emissions at 20 weeks compared with non-treated lambs. Concentration of VFA was not affected by the intervention at 8 or 14 weeks but a lower concentration was observed in T2 lambs compared with C2 at week 20. Metataxonomics (rRNA gene) revealed differences in archaeal communities between groups of lambs when treatment was applied (weeks 8 and 20); whereas, in accord with methane emissions, these differences disappeared when treatment was discontinued (week 14). Protozoal community structure was not affected by treatment. In contrast, bacterial community structure differed between treated and non-treated lambs during and after the intervention. Rumen and urine LC-MS and NMR metabolomics at week 20 separated C2 from T2 lambs and correlation analysis highlighted interactions between microbes and metabolites, notably that of methylated compounds and Methanomassiliicocceae methanogens. This study demonstrates that a long-term early-life intervention induced modifications in the composition of the rumen bacterial community that persisted after the intervention ceased with little or no effect on archaeal and protozoal communities. However, there was no persistency of the early-life intervention on methanogenesis indicating resilience for this function.
Collapse
Affiliation(s)
- Cristina Saro
- Université Clermont Auvergne, INRA, VetAgro Sup, UMR Herbivores, Saint-Genès-Champanelle, France
| | - Ulli M Hohenester
- Université Clermont Auvergne, INRA, VetAgro Sup, UMR Herbivores, Saint-Genès-Champanelle, France
| | | | - Marie Lagrée
- Université Clermont Auvergne - CNRS - SIGMA-Clermont, Institut de Chimie de Clermont-Ferrand, Clermont-Ferrand, France.,Université Clermont Auvergne - INRA, MetaboHUB/Plateforme d'Exploration du Métabolisme, Clermont-Ferrand, France
| | - Cécile Martin
- Université Clermont Auvergne, INRA, VetAgro Sup, UMR Herbivores, Saint-Genès-Champanelle, France
| | - Michel Doreau
- Université Clermont Auvergne, INRA, VetAgro Sup, UMR Herbivores, Saint-Genès-Champanelle, France
| | - Hamid Boudra
- Université Clermont Auvergne, INRA, VetAgro Sup, UMR Herbivores, Saint-Genès-Champanelle, France
| | - Milka Popova
- Université Clermont Auvergne, INRA, VetAgro Sup, UMR Herbivores, Saint-Genès-Champanelle, France
| | - Diego P Morgavi
- Université Clermont Auvergne, INRA, VetAgro Sup, UMR Herbivores, Saint-Genès-Champanelle, France
| |
Collapse
|
29
|
Popova M, Trendafilova I, Zgureva D, Kalvachev Y, Boycheva S, Novak Tušar N, Szegedi A. Polymer-coated mesoporous silica nanoparticles for controlled release of the prodrug sulfasalazine. J Drug Deliv Sci Technol 2018. [DOI: 10.1016/j.jddst.2018.01.020] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
|
30
|
Antic D, Biljana M, Milic N, Cheson B, Narkhede M, Panovska I, Trajkova S, Popova M, Llamas P, Raso A, Delluc A, Ianotto J, Gerotziafas G, Fareed J. Internal and external validation of THROLY (thrombosis lymphoma) score. Thromb Res 2018. [DOI: 10.1016/j.thromres.2018.02.025] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
|
31
|
Perlin DV, Aleksandrov IV, Zipunnikov VP, Popova M. [Laparoscopic radical cystectomy: innovations and classics]. Urologiia 2017:26-30. [PMID: 29135138 DOI: 10.18565/urology.2017.5.26-30] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
Abstract
INTRODUCTION Radical cystectomy remains the gold-standard treatment for muscle-invasive bladder cancer. To combine the advantages of minimally invasive interventions and the well-established open surgery, we attempted to reproduce as accurately as possible the technique of open radical cystectomy using a laparoscopic procedure. MATERIALS AND METHODS The study comprised 35 patients (27 men and 8 women) with invasive bladder cancer who underwent laparoscopic radical cystectomy (LRC) between April 2013 and March 2016. The study included only patients with fully intra-corporal ileum conduits. RESULTS The operating time averaged 378 min., the mean blood loss was 285 ml, the mean postoperative hospital stay was 12.4 days. Only 20% of patients needed postoperative opioid analgesia. Postoperative complications occurred in 11.4% of patients. The vast majority of them were successfully managed by minimally invasive methods. CONCLUSION Laparoscopic radical cystectomy is a safe and effective treatment modality for invasive bladder cancer. However, more patients and a longer observation period are needed to recommend the method as a standard of care.
Collapse
Affiliation(s)
- D V Perlin
- Volgograd Regional Uronephrology Center, Volzhsky, Russia.,Volgograd SMU of Minzdrav of Russia, Volgograd, Russia
| | - I V Aleksandrov
- Volgograd Regional Uronephrology Center, Volzhsky, Russia.,Volgograd SMU of Minzdrav of Russia, Volgograd, Russia
| | - V P Zipunnikov
- Volgograd Regional Uronephrology Center, Volzhsky, Russia.,Volgograd SMU of Minzdrav of Russia, Volgograd, Russia
| | - M Popova
- Volgograd Regional Uronephrology Center, Volzhsky, Russia.,Volgograd SMU of Minzdrav of Russia, Volgograd, Russia
| |
Collapse
|
32
|
Popova M, McGovern E, McCabe MS, Martin C, Doreau M, Arbre M, Meale SJ, Morgavi DP, Waters SM. The Structural and Functional Capacity of Ruminal and Cecal Microbiota in Growing Cattle Was Unaffected by Dietary Supplementation of Linseed Oil and Nitrate. Front Microbiol 2017; 8:937. [PMID: 28596764 PMCID: PMC5442214 DOI: 10.3389/fmicb.2017.00937] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2017] [Accepted: 05/09/2017] [Indexed: 01/13/2023] Open
Abstract
Microorganisms in the digestive tract of ruminants differ in their functionality and ability to use feed constituents. While cecal microbiota play an important role in post-rumen fermentation of residual substrates undigested in the rumen, limited knowledge exists regarding its structure and function. In this trial we investigated the effect of dietary supplementation with linseed oil and nitrate on methane emissions and on the structure of ruminal and cecal microbiota of growing bulls. Animals were allocated to either a CTL (control) or LINNIT (CTL supplemented with 1.9% linseed and 1.0% nitrates) diet. Methane emissions were measured using the GreenFeed system. Microbial diversity was assessed using amplicon sequencing of microbial genomic DNA. Additionally, total RNA was extracted from ruminal contents and functional mcrA and mtt genes were targeted in amplicon sequencing approach to explore the diversity of functional gene expression in methanogens. LINNIT had no effect on methane yield (g/kg DMI) even though it decreased methane production by 9% (g/day; P < 0.05). Methanobrevibacter- and Methanomassiliicoccaceae-related OTUs were more abundant in cecum (72 and 24%) compared to rumen (60 and 11%) irrespective of the diet (P < 0.05). Feeding LINNIT reduced the relative abundance of Methanomassiliicoccaceae mcrA cDNA reads in the rumen. Principal component analysis revealed significant differences in taxonomic composition and abundance of bacterial communities between rumen and cecum. Treatment decreased the relative abundance of a few Ruminococcaceae genera, without affecting global bacterial community structure. Our research confirms a high level of heterogeneity in species composition of microbial consortia in the main gastrointestinal compartments where feed is fermented in ruminants. There was a parallel between the lack of effect of LINNIT on ruminal and cecal microbial community structure and functions on one side and methane emission changes on the other. These results suggest that the sequencing strategy used here to study microbial diversity and function accurately reflected the absence of effect on methane phenotypes in bulls treated with linseed plus nitrate.
Collapse
Affiliation(s)
- Milka Popova
- UMR1213 Herbivores, Institut National de la Recherche Agronomique, VetAgro Sup, Clermont Université, Université de LyonSaint Genès-Champanelle, France
| | - Emily McGovern
- Animal and Bioscience Research Department, Animal and Grassland Research and Innovation Centre, TeagascDunsany, County Meath, Ireland
| | - Matthew S McCabe
- Animal and Bioscience Research Department, Animal and Grassland Research and Innovation Centre, TeagascDunsany, County Meath, Ireland
| | - Cécile Martin
- UMR1213 Herbivores, Institut National de la Recherche Agronomique, VetAgro Sup, Clermont Université, Université de LyonSaint Genès-Champanelle, France
| | - Michel Doreau
- UMR1213 Herbivores, Institut National de la Recherche Agronomique, VetAgro Sup, Clermont Université, Université de LyonSaint Genès-Champanelle, France
| | - Marie Arbre
- UMR1213 Herbivores, Institut National de la Recherche Agronomique, VetAgro Sup, Clermont Université, Université de LyonSaint Genès-Champanelle, France
| | - Sarah J Meale
- UMR1213 Herbivores, Institut National de la Recherche Agronomique, VetAgro Sup, Clermont Université, Université de LyonSaint Genès-Champanelle, France
| | - Diego P Morgavi
- UMR1213 Herbivores, Institut National de la Recherche Agronomique, VetAgro Sup, Clermont Université, Université de LyonSaint Genès-Champanelle, France
| | - Sinéad M Waters
- Animal and Bioscience Research Department, Animal and Grassland Research and Innovation Centre, TeagascDunsany, County Meath, Ireland
| |
Collapse
|
33
|
Rira M, Morgavi DP, Archimède H, Marie-Magdeleine C, Popova M, Bousseboua H, Doreau M. Potential of tannin-rich plants for modulating ruminal microbes and ruminal fermentation in sheep. J Anim Sci 2015; 93:334-47. [PMID: 25568379 DOI: 10.2527/jas.2014-7961] [Citation(s) in RCA: 38] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
The objective of this work was to study nutritional strategies for decreasing methane production by ruminants fed tropical diets, combining in vitro and in vivo methods. The in vitro approach was used to evaluate the dose effect of condensed tannins (CT) contained in leaves of Gliricidia sepium, Leucaena leucocephala, and Manihot esculenta (39, 75, and 92 g CT/kg DM, respectively) on methane production and ruminal fermentation characteristics. Tannin-rich plants (TRP) were incubated for 24 h alone or mixed with a natural grassland hay based on Dichanthium spp. (control plant), so that proportions of TRP were 0, 0.25, 0.5, 0.75, and 1.0. Methane production, VFA concentration, and fermented OM decreased with increased proportions of TRP. Numerical differences on methane production and VFA concentration among TRP sources may be due to differences in their CT content, with greater effects for L. leucocephala and M. esculenta than for G. sepium. Independently of TRP, the response to increasing doses of CT was linear for methane production but quadratic for VFA concentration. As a result, at moderate tannin dose, methane decreased more than VFA. The in vivo trial was conducted to investigate the effect of TRP on different ruminal microbial populations. To this end, 8 rumen-cannulated sheep from 2 breeds (Texel and Blackbelly) were used in two 4 × 4 Latin square designs. Diets were fed ad libitum and were composed of the same feeds used for the in vitro trial: control plant alone or combined with pellets made from TRP leaves at 44% of the diet DM. Compared to TRP, concentration of Ruminococcus flavefaciens was greater for the control diet and concentration of Ruminococcus albus was least for the control diet. The methanogen population was greater for Texel than for Blackbelly. By contrast, TRP-containing diets did not affect protozoa or Fibrobacter succinogenes numbers. Hence, TRP showed potential for mitigating methane production by ruminants. These findings suggest that TRP fed as pellets could be used to decrease methane production.
Collapse
Affiliation(s)
- M Rira
- INRA, UMR 1213 Herbivores, 63122 Saint-Genès Champanelle, France
| | - D P Morgavi
- INRA, UMR 1213 Herbivores, 63122 Saint-Genès Champanelle, France
| | - H Archimède
- INRA, Unité de Recherches Zootechniques, 97170 Petit-Bourg, Guadeloupe, France
| | - C Marie-Magdeleine
- INRA, Unité de Recherches Zootechniques, 97170 Petit-Bourg, Guadeloupe, France
| | - M Popova
- INRA, UMR 1213 Herbivores, 63122 Saint-Genès Champanelle, France
| | - H Bousseboua
- Ecole Nationale Supérieure des Biotechnologies, Ali Mendjli, BP E66. 25100 Constantine, Algeria
| | - M Doreau
- INRA, UMR 1213 Herbivores, 63122 Saint-Genès Champanelle, France
| |
Collapse
|
34
|
Morgavi DP, Rathahao-Paris E, Popova M, Boccard J, Nielsen KF, Boudra H. Rumen microbial communities influence metabolic phenotypes in lambs. Front Microbiol 2015; 6:1060. [PMID: 26528248 PMCID: PMC4601264 DOI: 10.3389/fmicb.2015.01060] [Citation(s) in RCA: 61] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/30/2015] [Accepted: 09/14/2015] [Indexed: 12/15/2022] Open
Abstract
The rumen microbiota is an essential part of ruminants shaping their nutrition and health. Despite its importance, it is not fully understood how various groups of rumen microbes affect host-microbe relationships and functions. The aim of the study was to simultaneously explore the rumen microbiota and the metabolic phenotype of lambs for identifying host-microbe associations and potential biomarkers of digestive functions. Twin lambs, separated in two groups after birth were exposed to practices (isolation and gavage with rumen fluid with protozoa or protozoa-depleted) that differentially restricted the acquisition of microbes. Rumen microbiota, fermentation parameters, digestibility and growth were monitored for up to 31 weeks of age. Microbiota assembled in isolation from other ruminants lacked protozoa and had low bacterial and archaeal diversity whereas digestibility was not affected. Exposure to adult sheep microbiota increased bacterial and archaeal diversity independently of protozoa presence. For archaea, Methanomassiliicoccales displaced Methanosphaera. Notwithstanding, protozoa induced differences in functional traits such as digestibility and significantly shaped bacterial community structure, notably Ruminococcaceae and Lachnospiraceae lower up to 6 folds, Prevotellaceae lower by ~40%, and Clostridiaceae and Veillonellaceae higher up to 10 folds compared to microbiota without protozoa. An orthogonal partial least squares-discriminant analysis of urinary metabolome matched differences in microbiota structure. Discriminant metabolites were mainly involved in amino acids and protein metabolic pathways while a negative interaction was observed between methylotrophic methanogens Methanomassiliicoccales and trimethylamine N-oxide. These results stress the influence of gut microbes on animal phenotype and show the potential of metabolomics for monitoring rumen microbial functions.
Collapse
Affiliation(s)
- Diego P Morgavi
- Institute National de la Recherche Agronomique, UMR1213 Herbivores, Clermont Université, VetAgro Sup, UMR Herbivores Clermont-Ferrand, France
| | - Estelle Rathahao-Paris
- Institute National de la Recherche Agronomique, UMR 1145 Ingénierie Procédés Aliments Paris, France ; Agroparistech, UMR 1145 Ingénierie Procédés Aliments Paris, France
| | - Milka Popova
- Institute National de la Recherche Agronomique, UMR1213 Herbivores, Clermont Université, VetAgro Sup, UMR Herbivores Clermont-Ferrand, France
| | - Julien Boccard
- School of Pharmaceutical Sciences, University of Geneva, University of Lausanne Geneva, Switzerland
| | - Kristian F Nielsen
- Department of Systems Biology, Technical University of Denmark Kgs. Lyngby, Denmark
| | - Hamid Boudra
- Institute National de la Recherche Agronomique, UMR1213 Herbivores, Clermont Université, VetAgro Sup, UMR Herbivores Clermont-Ferrand, France
| |
Collapse
|
35
|
Yoncheva K, Popova M, Szegedi A, Mihaly J, Tzankov B, Lambov N, Konstantinov S, Tzankova V, Pessina F, Valoti M. Functionalized mesoporous silica nanoparticles for oral delivery of budesonide. J SOLID STATE CHEM 2014. [DOI: 10.1016/j.jssc.2013.12.020] [Citation(s) in RCA: 43] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
|
36
|
Affiliation(s)
- M. Popova
- Institute of Organic Chemistry with Centre of Phytochemistry, Bulgarian Academy of Sciences, Sofia, Bulgaria
| | - M. Reyes
- INRA, UR 406 Abeilles et Environnement, Site Agroparc, 84914 Avignon Cedex 9, France
| | - Y. Le Conte
- INRA, UR 406 Abeilles et Environnement, Site Agroparc, 84914 Avignon Cedex 9, France
| | - V. Bankova
- Institute of Organic Chemistry with Centre of Phytochemistry, Bulgarian Academy of Sciences, Sofia, Bulgaria
| |
Collapse
|
37
|
Klimko N, Khostelidi S, Popova M, Volkova A, Kolbin A, Boychenko E, Klimovich A, Belogurova M, Podoltseva E, Medvedeva N, Zjuzgin I, Bogomolova T, Zubarovskaya L, Afanasyev B, Vasilyeva N. P254 Mucormycosis in hematological and oncological patients in Saint-Petersburg, Russia. Int J Antimicrob Agents 2013. [DOI: 10.1016/s0924-8579(13)70495-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
|
38
|
Popova M, Molimard P, Courau S, Crociani J, Dufour C, Le Vacon F, Carton T. Beneficial effects of probiotics in upper respiratory tract infections and their mechanical actions to antagonize pathogens. J Appl Microbiol 2012; 113:1305-18. [PMID: 22788970 PMCID: PMC7166318 DOI: 10.1111/j.1365-2672.2012.05394.x] [Citation(s) in RCA: 54] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/02/2012] [Revised: 06/22/2012] [Accepted: 07/05/2012] [Indexed: 12/16/2022]
Abstract
Probiotics are live micro‐organisms with beneficial effects on human health, which have the ability to counteract infections at different locations of the body. Clinical trials have shown that probiotics can be used as preventive and therapeutic agents in upper respiratory tract infections (URTIs) and otitis. Their mechanical properties allow them to aggregate and to compete with pathogens for nutrients, space and attachment to host cells. Consequently, they can directly antagonize pathogens and thus exert beneficial effects without directly affecting the metabolism of the host. An overview of the probiotics with such traits, tested up to date in clinical trials for the prevention or treatment of URTIs and otitis, is presented in this review. Their mechanical properties in the respiratory tract as well as at other locations are also cited. Species with interesting in vitro properties towards pharyngeal cells or against common respiratory pathogens have also been included. The potential safety risks of the cited species are then discussed. This review could be of help in the screening of probiotic strains with specific mechanical properties susceptible to have positive effects in clinical trials against URTIs.
Collapse
Affiliation(s)
- M Popova
- Biofortis, Saint Herblain, France
| | | | | | | | | | | | | |
Collapse
|
39
|
Quillet L, Besaury L, Popova M, Paissé S, Deloffre J, Ouddane B. Abundance, diversity and activity of sulfate-reducing prokaryotes in heavy metal-contaminated sediment from a salt marsh in the Medway Estuary (UK). Mar Biotechnol (NY) 2012; 14:363-381. [PMID: 22124626 DOI: 10.1007/s10126-011-9420-5] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/08/2010] [Accepted: 11/17/2011] [Indexed: 05/31/2023]
Abstract
We investigated the diversity and activity of sulfate-reducing prokaryotes (SRP) in a 3.5-m sediment core taken from a heavy metal-contaminated site in the Medway Estuary, UK. The abundance of SRPs was quantified by qPCR of the dissimilatory sulfite reductase gene β-subunit (dsrB) and taking into account DNA extraction efficiency. This showed that SRPs were abundant throughout the core with maximum values in the top 50 cm of the sediment core making up 22.4% of the total bacterial community and were 13.6% at 250 cm deep. Gene libraries for dsrA (dissimilatory sulfite reductase α-subunit) were constructed from the heavily contaminated (heavy metals) surface sediment (top 20 cm) and from the less contaminated and sulfate-depleted, deeper zone (250 cm). Certain cloned sequences were similar to dsrA found in members of the Syntrophobacteraceae, Desulfobacteraceae and Desulfovibrionaceae as well as a large fraction (60%) of novel sequences that formed a deep branching dsrA lineage. Phylogenetic analysis of metabolically active SRPs was performed by reverse transcription PCR and single strand conformational polymorphism analysis (RT-PCR-SSCP) of dsrA genes derived from extracted sediment RNA. Subsequent comparative sequence analysis of excised SSCP bands revealed a high transcriptional activity of dsrA belonging to Desulfovibrio species in the surface sediment. These results may suggest that members of the Desulfovibrionaceae are more active than other SRP groups in heavy metal-contaminated surface sediments.
Collapse
Affiliation(s)
- Laurent Quillet
- Faculté des Sciences, Université de Rouen-CNRS 6143-M2C, Groupe de Microbiologie, Place Emile Blondel, Mont Saint Aignan Cedex 76821, France.
| | | | | | | | | | | |
Collapse
|
40
|
Popova M, Dimitrov M, Santo VD, Ravasio N, Scotti N. Dehydrogenation of cyclohexanol on copper containing catalysts: The role of the support and the preparation method. CATAL COMMUN 2012. [DOI: 10.1016/j.catcom.2011.10.021] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
|
41
|
|
42
|
Popova M, Martin C, Eugène M, Mialon M, Doreau M, Morgavi D. Effect of fibre- and starch-rich finishing diets on methanogenic Archaea diversity and activity in the rumen of feedlot bulls. Anim Feed Sci Technol 2011. [DOI: 10.1016/j.anifeedsci.2011.04.060] [Citation(s) in RCA: 50] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
|
43
|
Szegedi A, Popova M, Goshev I, Mihály J. Effect of amine functionalization of spherical MCM-41 and SBA-15 on controlled drug release. J SOLID STATE CHEM 2011. [DOI: 10.1016/j.jssc.2011.03.005] [Citation(s) in RCA: 119] [Impact Index Per Article: 9.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
|
44
|
Tsoncheva T, Manova E, Velinov N, Paneva D, Popova M, Kunev B, Tenchev K, Mitov I. Thermally synthesized nanosized copper ferrites as catalysts for environment protection. CATAL COMMUN 2010. [DOI: 10.1016/j.catcom.2010.08.007] [Citation(s) in RCA: 52] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022] Open
|
45
|
Popova M, Martin C, Morgavi DP. Improved protocol for high-quality co-extraction of DNA and RNA from rumen digesta. Folia Microbiol (Praha) 2010; 55:368-72. [PMID: 20680573 DOI: 10.1007/s12223-010-0060-3] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/25/2010] [Revised: 04/14/2010] [Indexed: 10/19/2022]
Abstract
We report an improved method for total nucleic acids extraction from rumen content samples. The method employs bead beating, and phenol-chloroform extraction followed by saline-alcohol precipitation. Total nucleic acids and RNA yield and purity were assessed by spectrophotometric measurements; RNA integrity was estimated using Agilent RNA 6000 Nano Kit on an Agilent 2100 Bioanalyzer. The method provided total nucleic acids and RNA extracts of good quantity and quality. The extraction is not time consuming and it is valuable for ecological studies of rumen microbial community structure and gene expression.
Collapse
Affiliation(s)
- M Popova
- INRA Clermont-Ferrand-Theix, 63122, Saint Gènes Champanelle, France
| | | | | |
Collapse
|
46
|
Popova M, Szegedi A, Cherkezova-Zheleva Z, Mitov I, Kostova N, Tsoncheva T. Toluene oxidation on titanium- and iron-modified MCM-41 materials. J Hazard Mater 2009; 168:226-32. [PMID: 19269739 DOI: 10.1016/j.jhazmat.2009.02.018] [Citation(s) in RCA: 24] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/19/2008] [Revised: 01/26/2009] [Accepted: 02/03/2009] [Indexed: 05/23/2023]
Abstract
Iron- and titanium-modified MCM-41 materials, prepared by direct synthesis at ambient temperature or wet impregnation technique, were investigated using X-ray diffraction (XRD), transmission electron microscopy (TEM), temperature-programmed reduction (TPR), UV-vis diffuse reflectance, Mössbauer and FT-IR spectroscopies. Their catalytic behavior was studied in total oxidation of toluene. Materials with high surface area and well-ordered pore structure were obtained. The increase of the titanium content (up to 50%) in the bisubstituted, iron and titanium containing materials leads to partial structure collapse of the silica matrix. Finely dispersed anatase particles were also formed during the impregnation procedure. The catalytic activity of the bisubstituted materials was influenced by the method of their preparation, but higher catalytic stability could be achieved, compared to iron monosubstituted one. The nature of the catalytic active sites is discussed.
Collapse
Affiliation(s)
- M Popova
- Institute of Organic Chemistry with Centre of Phytochemistry, Bulgarian Academy of Sciences, Sofia, Bulgaria.
| | | | | | | | | | | |
Collapse
|
47
|
Popova M. [Femicare - care about woman in menopause]. Akush Ginekol (Sofiia) 2007; 46 Suppl 2:50-53. [PMID: 18217306] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 05/25/2023]
|
48
|
Aleksandrova E, Bozhkova S, Georgieva E, Zlatareva M, Lishkova P, Mitkova M, Popova M, Spasova A, Stoichkova I, Stoianova S, Toshkova I, Khadzhieva S, Iancheva M, Rankova S. [The feeding of newborns with low birth weight with milk formula "Nenatal" and "Nutrilon-premium"]. Akush Ginekol (Sofiia) 2006; 45:38-43. [PMID: 16889187] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 05/11/2023]
Abstract
The aim of the study is to make retrospective analysis of 9 years experience in the feeding of praematuries and high risk newborn in that ward in First City Hospital-Sofia with formula milks "Nenatal" and "Nutrilon-premium". 721--42.4% from all babies in this period were feed with those formulas. With Nenatal only--11.8%, with Nutrilon-premium 88.2%. This the fact is due that all babies under 2000 gr. were fed with Nenatal, and after reaching 2000 gr.--with Nutrilon-premium. The results confirm that Nenatal is right formula for feeding of low and very low birth weight infant, due to its special content and qualities. The results from Nutrilon-premium illustrated that mean gain weight is the biggest in I grade of prematurity--33 grams, followed by matures--30 gr, after them II grade--29 gr., III grade--27 gr., IV grade--26 gr. As a conclusion we may say that mean gain weight for all groups is 29 grams. Consuming all gain weight of the babies feeding with Nutrilon-premium data appear that the biggest is in III of prematurity--1499 grams, followed by IV grade--1418 gr., I grade--1341 spama, II grade--1219 gr., and last matures--745 gr.
Collapse
|
49
|
Popova M, Shen YL, Khraishi T. Atomistic simulation of dislocation interactions in a model crystal subjected to shear. Molecular Simulation 2005. [DOI: 10.1080/08927020500349999] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
|
50
|
Mavrodinova V, Popova M, Valchev V, Nickolov R, Minchev C. Beta zeolite colloidal nanocrystals supported on mesoporous MCM-41. J Colloid Interface Sci 2005; 286:268-73. [PMID: 15848427 DOI: 10.1016/j.jcis.2005.01.006] [Citation(s) in RCA: 29] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/21/2004] [Accepted: 01/05/2005] [Indexed: 11/17/2022]
Abstract
Zeolite-based composite materials prepared by the embedding of the beta zeolite nanophase from aqueous colloidal solution into matrices of preformed Si(Al)MCM-41 mesoporous molecular sieves have been characterized by different methods (XRD, SEM, FTIR, N2 adsorption, and TPD of NH3). Their potential as catalysts for toluene disproportionation has been compared to mechanical mixtures of freeze-dried nanobeta crystallites with Si(Al)MCM-41 mesoporous materials. It is found that the zeolite catalyst efficiency is not substantially changed by the presence of mesopores belonging to the matrix. It is suggested that formation of intergrown aggregates from the colloidal nanobeta particles provides own highly developed textural mesoporosity that makes the contribution of the diffusional alleviation of the support negligible.
Collapse
Affiliation(s)
- V Mavrodinova
- Institute of Organic Chemistry, Bulgarian Academy of Sciences, Sofia 1113, Bulgaria.
| | | | | | | | | |
Collapse
|