Institution
Institut national de la recherche agronomique
Facility•Rabat, Morocco•
About: Institut national de la recherche agronomique is a facility organization based out in Rabat, Morocco. It is known for research contribution in the topics: Population & Gene. The organization has 41515 authors who have published 68362 publications receiving 3292057 citations. The organization is also known as: INRA & Inra.
Topics: Population, Gene, Soil water, Genome, Quantitative trait locus
Papers published on a yearly basis
Papers
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TL;DR: Both chemical and biochemical factors that affect the absorption and metabolism of polyphenols are reviewed, with particular emphasis on flavonoid glycosides.
Abstract: The main dietary sources of polyphenols are reviewed, and the daily intake is calculated for a given diet containing some common fruits, vegetables and beverages. Phenolic acids account for about one third of the total intake and flavonoids account for the remaining two thirds. The most abundant flavonoids in the diet are flavanols (catechins plus proanthocyanidins), anthocyanins and their oxidation products. The main polyphenol dietary sources are fruit and beverages (fruit juice, wine, tea, coffee, chocolate and beer) and, to a lesser extent vegetables, dry legumes and cereals. The total intake is approximately 1 g/d. Large uncertainties remain due to the lack of comprehensive data on the content of some of the main polyphenol classes in food. Bioavailability studies in humans are discussed. The maximum concentration in plasma rarely exceeds 1 microM after the consumption of 10-100 mg of a single phenolic compound. However, the total plasma phenol concentration is probably higher due to the presence of metabolites formed in the body's tissues or by the colonic microflora. These metabolites are still largely unknown and not accounted for. Both chemical and biochemical factors that affect the absorption and metabolism of polyphenols are reviewed, with particular emphasis on flavonoid glycosides. A better understanding of these factors is essential to explain the large variations in bioavailability observed among polyphenols and among individuals.
3,394 citations
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Chalmers University of Technology1, Institut national de la recherche agronomique2, Agrocampus Ouest3, Aix-Marseille University4, University of Guelph5, Massey University6, Ege University7, Agro ParisTech8, Norwich Research Park9, Norwich University10, University of Massachusetts Amherst11, Spanish National Research Council12, Universidade Nova de Lisboa13, University of California, Davis14, Norwegian University of Life Sciences15, University of Greifswald16, Teagasc17
TL;DR: In this article, the authors proposed a general standardised and practical static digestion method based on physiologically relevant conditions that can be applied for various endpoints, which may be amended to accommodate further specific requirements.
Abstract: Simulated gastro-intestinal digestion is widely employed in many fields of food and nutritional sciences, as conducting human trials are often costly, resource intensive, and ethically disputable. As a consequence, in vitro alternatives that determine endpoints such as the bioaccessibility of nutrients and non-nutrients or the digestibility of macronutrients (e.g. lipids, proteins and carbohydrates) are used for screening and building new hypotheses. Various digestion models have been proposed, often impeding the possibility to compare results across research teams. For example, a large variety of enzymes from different sources such as of porcine, rabbit or human origin have been used, differing in their activity and characterization. Differences in pH, mineral type, ionic strength and digestion time, which alter enzyme activity and other phenomena, may also considerably alter results. Other parameters such as the presence of phospholipids, individual enzymes such as gastric lipase and digestive emulsifiers vs. their mixtures (e.g. pancreatin and bile salts), and the ratio of food bolus to digestive fluids, have also been discussed at length. In the present consensus paper, within the COST Infogest network, we propose a general standardised and practical static digestion method based on physiologically relevant conditions that can be applied for various endpoints, which may be amended to accommodate further specific requirements. A frameset of parameters including the oral, gastric and small intestinal digestion are outlined and their relevance discussed in relation to available in vivo data and enzymes. This consensus paper will give a detailed protocol and a line-by-line, guidance, recommendations and justifications but also limitation of the proposed model. This harmonised static, in vitro digestion method for food should aid the production of more comparable data in the future.
3,380 citations
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TL;DR: Using a coimplantation tumor xenograft model, it is demonstrated that carcinoma-associated fibroblasts extracted from human breast carcinomas promote the growth of admixed breast carcinoma cells significantly more than do normal mammaries derived from the same patients.
3,373 citations
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Potsdam Institute for Climate Impact Research1, University of Bayreuth2, University of California, Berkeley3, Institut national de la recherche agronomique4, Dresden University of Technology5, ETH Zurich6, Max Planck Society7, South Dakota State University8, Academy of Sciences of the Czech Republic9, Finnish Forest Research Institute10, Finnish Meteorological Institute11, Oak Ridge National Laboratory12, Centre national de la recherche scientifique13, University of Helsinki14, Weizmann Institute of Science15
TL;DR: In this paper, the authors analyse the effect of extrapolation of night-time values of ecosystem respiration into the daytime; this is usually done with a temperature response function that is derived from long-term data sets.
Abstract: This paper discusses the advantages and disadvantages of the different methods that separate net ecosystem exchange (NEE) into its major components, gross ecosystem carbon uptake (GEP) and ecosystem respiration (Reco). In particular, we analyse the effect of the extrapolation of night-time values of ecosystem respiration into the daytime; this is usually done with a temperature response function that is derived from long-term data sets. For this analysis, we used 16 one-year-long data sets of carbon dioxide exchange measurements from European and US-American eddy covariance networks. These sites span from the boreal to Mediterranean climates, and include deciduous and evergreen forest, scrubland and crop ecosystems. We show that the temperature sensitivity of Reco, derived from long-term (annual) data sets, does not reflect the short-term temperature sensitivity that is effective when extrapolating from night- to daytime. Specifically, in summer active ecosystems the long
2,881 citations
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TL;DR: Examination of the oral and gut microbiome of melanoma patients undergoing anti-programmed cell death 1 protein (PD-1) immunotherapy suggested enhanced systemic and antitumor immunity in responding patients with a favorable gut microbiome as well as in germ-free mice receiving fecal transplants from responding patients.
Abstract: Preclinical mouse models suggest that the gut microbiome modulates tumor response to checkpoint blockade immunotherapy; however, this has not been well-characterized in human cancer patients. Here we examined the oral and gut microbiome of melanoma patients undergoing anti-programmed cell death 1 protein (PD-1) immunotherapy (n = 112). Significant differences were observed in the diversity and composition of the patient gut microbiome of responders versus nonresponders. Analysis of patient fecal microbiome samples (n = 43, 30 responders, 13 nonresponders) showed significantly higher alpha diversity (P < 0.01) and relative abundance of bacteria of the Ruminococcaceae family (P < 0.01) in responding patients. Metagenomic studies revealed functional differences in gut bacteria in responders, including enrichment of anabolic pathways. Immune profiling suggested enhanced systemic and antitumor immunity in responding patients with a favorable gut microbiome as well as in germ-free mice receiving fecal transplants from responding patients. Together, these data have important implications for the treatment of melanoma patients with immune checkpoint inhibitors.
2,791 citations
Authors
Showing all 41526 results
Name | H-index | Papers | Citations |
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Daniel J. Jacob | 162 | 656 | 76530 |
Jens J. Holst | 160 | 1536 | 107858 |
Grant W. Montgomery | 157 | 926 | 108118 |
Dirk Inzé | 149 | 647 | 74468 |
Bernard Henrissat | 139 | 593 | 100002 |
David Julian McClements | 131 | 1137 | 71123 |
Pascale Cossart | 124 | 434 | 50101 |
Christine H. Foyer | 116 | 490 | 61381 |
Eric Verdin | 115 | 370 | 47971 |
Olivier Hermine | 111 | 1026 | 43779 |
John Ralph | 109 | 442 | 39238 |
Edward M. Rubin | 107 | 287 | 62667 |
Gary Williamson | 106 | 478 | 42960 |
Stephen L. Hauser | 106 | 561 | 46248 |
Serge Hercberg | 106 | 942 | 56791 |