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Artykuły w czasopismach na temat "Levures séléniées"
Noel, A., M. Leboutte, K. Aublé, F. Morel-Despeisse i R. Marion-Letellier. "Une supplémentation en gomme arabique et levures séléniées améliore la croissance pondérale et réduit l’hyperperméabilité et l’inflammation intestinale dans un modèle murin de dénutrition associé à une entéropathie". Nutrition Clinique et Métabolisme 37, nr 2 (maj 2023): e97-e98. http://dx.doi.org/10.1016/j.nupar.2023.03.181.
Pełny tekst źródła"Concentration du sélénium dans le sang total et activité érythrocytaire de la glutathion peroxydase chez des sujets sains supplémentés avec du sélénate, sélénite, L-sélénométhionine et de la levure riche en sélénium". Nutrition Clinique et Métabolisme 2, nr 2 (styczeń 1988): 104. http://dx.doi.org/10.1016/s0985-0562(88)80098-0.
Pełny tekst źródłaRozprawy doktorskie na temat "Levures séléniées"
Noel, Adrien. "Ιdentificatiοn d'ingrédients alimentaires d'intérêt dans un mοdèle de malnutritiοn assοcié à une entérοpathie". Electronic Thesis or Diss., Normandie, 2024. http://www.theses.fr/2024NORMR018.
Pełny tekst źródłaChildhood undernutrition is a major public health issue and is involved in 45% of child death under the age of 5. Comorbidities are associated to childhood undernutrition, such as environmental enteropathy, characterized by villous blunting, intestinal permeability, and gut inflammation. Nowadays, no treatment is available to cure environmental enteropathy.The aim of this project was to assess efficacity of fiber associated to selenied yeast, to improve nutritional parameters and gut function in an undernutrition-associated enteropathy (UE) murine model. We began by assess effect of gum arabic and selenied yeast (GA-SeY) on UE model. Then, we compared GA-SeY effect with other fibers combined with SeY: psyllium (PSY-SeY), Oat-fiber (OAT-SeY) and fructo-oligosaccharides (FOS-SeY). First, the UE model induced a lower weight gain and an altered growth, as well as a gut barrier dysfunction, including intestinal hyperpermeability and inflammation. A one-week supplementation of GA-SeY reduces intestinal inflammation while a two-week supplementation of GA-SeY increases weight gain and decreases intestinal hyperpermeability and inflammation. In the second study, 2-week GA-SeY supplementation only improved intestinal inflammation, while OAT-SeY and FOS-SeY supplementation had no effect on the studied parameters. PSY-SeY supplementation exacerbates body weight loss and decreases jejunal trans-epithelial resistance in mice with UE.The beneficial effect of two weeks of GA-SeY supplementation on intestinal barrier function in mice with UE is not reproduced in supplements combining SeY with oat fiber or FOS. Furthermore, psyllium and SeY supplementation exert deleterious effects on both nutritional parameters and intestinal barrier function. The UE model enables to identify contrasting effects of nutritional supplementation on mouse growth and barrier function depending on the type of fiber used
Tastet, Laure. "Identification des protéines séléniées dans une levure enrichie en sélénium par une approche protéomique assistée de la spectrométrie de masse atomique". Pau, 2007. http://www.theses.fr/2007PAUU3021.
Pełny tekst źródłaSelenium is an essential trace element in the human body. There is a narrow range between the beneficial and toxic levels of selenium and, in both cases the biological effects are dependent on the actual chemical form of the element. Excessive selenium intake may cause a moderate to high health risk. Eating a healthy and nutritionally balanced diet is an important step towards achieving body’s nutritional requirements. Within this context, appropriate doses of supplemental selenium not only enhance cellular defence against oxidative damage but also may prevent certain types of cancers, according to human nutritional studies. The array of commercial selenium-fortified products has increased significantly in recent years, yet in most of the cases the exact composition as well as nutritional and toxicological data of these food supplements are not available or only partially known. The most popular of these products is yeast grown on selenium rich media which leads to the incorporation of selenium into proteins and other species. Despite a rich analytical literature on the characterization of selenium-rich yeast, the speciation of this element in yeast is amazingly poorly understood. Only few work, and only recently, appeared to allow an insight into the Se-containing protein fraction. New methodological advances allowed the analysis of the complete selenium-containing proteome in selenized yeast by atomic mass spectrometry coupled to a proteomic approach. 17 selenium-containing proteins in selenium-rich yeast were identified as the selenized phosphoglycerate kinase
Grigoras, Ioana. "Contributions à l'étude de la détoxication de la levure par les transporteurs ABC : 1 - étude biochimique de Yor1p; 2 - rôle des thiols dans la toxicité du sélénium". Phd thesis, Ecole Polytechnique X, 2005. http://pastel.archives-ouvertes.fr/pastel-00001994.
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