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Intestinal and hepatic nitrogen balance in the rat after the administration of an oral protein load
Fernández López, José Antonio; Casado, Javier (Casado Merediz); Rafecas, Immaculada; Esteve Ràfols, Montserrat; Argilés Huguet, Josep Ma.; Remesar Betlloch, Xavier; Alemany, Marià, 1946-
Universitat de Barcelona
The fate of a small oral dose of protein given to overnight-starved rats was studied. After 3 h, 62 per cent of the protein amino acids had been absorbed. Most of the absorbed N went into the bloodstream through the portal in the form of amino acids, but urea and ammonia were also present. About one-quarter of all absorbed N was carried as lymph amino acids. The liver was able to take all portal free ammonia and a large proportion of portal amino acids, releasing urea. The hepatic N balance was negative, indicating active proteolysis and net loss of liver protein.
02-03-2012
Fetge
Intestins
Nitrogen en l'organisme
Proteïnes
Liver
Intestines
Nitrogen in the body
Proteins
(c) The Nutrition Society, 1993
Artículo
Cambridge University Press, 1993
         

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