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DC Field | Value | Language |
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dc.contributor.author | Rotondo, Floriana | - |
dc.contributor.author | Sanz, Tania | - |
dc.contributor.author | Fernández López, José Antonio | - |
dc.contributor.author | Alemany, Marià, 1946- | - |
dc.contributor.author | Remesar Betlloch, Xavier | - |
dc.date.accessioned | 2016-07-28T07:31:56Z | - |
dc.date.available | 2017-07-14T22:01:26Z | - |
dc.date.issued | 2016-07-14 | - |
dc.identifier.issn | 2046-2069 | - |
dc.identifier.uri | http://hdl.handle.net/2445/101362 | - |
dc.description.abstract | The administration of diets with different protein/energy ratios induce variable but distinctive responses in rats; an excessive protein content tends to decrease fat accumulation, but reversion of this ratio tends to increase adipose tissue mass. The fate of N derived from amino acid metabolism is not only dependent on energy and dietary protein; the increased excretion of urea elicited by high-protein diets contrasts with the lower urea excretion (despite excess dietary protein and energy) in rats fed a cafeteria diet. After one month of exposure to high-protein (HPD) or cafeteria (CD) diets, we administered a gavage of 15N-arginine to undisturbed adult male rats, in order to trace the utilization of this not-recyclable-N amino acid under diets with different protein/energy relationships. Rats fed high-protein diet excreted higher amounts of N in urine and showed much lower gastrointestinal content of label. The CD rats decreased the excretion of urine N. Both groups' N balance showed a significant proportion of N not-accounted-for (but excreted nevertheless), the proportion being especially large in the HPD group. In conclusion, the process of disposal of amino acid N through the so far unknown pathway for 'non-accounted-for N' is, thus essentially dependent on excess amino acid availability; independently of urea cycle operation and diet energy content. | - |
dc.format.extent | 8 p. | - |
dc.format.mimetype | application/pdf | - |
dc.language.iso | eng | - |
dc.publisher | Royal Society of Chemistry | - |
dc.relation.isformatof | Versió postprint del document publicat a: http://dx.doi.org/10.1039/C6RA11039H | - |
dc.relation.ispartof | RSC Advances, 2016, vol. 6, p. 69177-69184 | - |
dc.relation.uri | http://dx.doi.org/10.1039/C6RA11039H | - |
dc.rights | (c) Rotondo, Floriana et al., 2016 | - |
dc.source | Articles publicats en revistes (Bioquímica i Biomedicina Molecular) | - |
dc.subject.classification | Isòtops | - |
dc.subject.classification | Proteïnes | - |
dc.subject.classification | Alimentació animal | - |
dc.subject.other | Isotopes | - |
dc.subject.other | Proteins | - |
dc.subject.other | Animal feeding | - |
dc.title | Stable isotope analysis of dietary arginine accrual and disposal efficiency in male rats fed diets with different protein content. | - |
dc.type | info:eu-repo/semantics/article | - |
dc.type | info:eu-repo/semantics/acceptedVersion | - |
dc.identifier.idgrec | 663190 | - |
dc.date.updated | 2016-07-28T07:32:01Z | - |
dc.rights.accessRights | info:eu-repo/semantics/openAccess | - |
Appears in Collections: | Articles publicats en revistes (Bioquímica i Biomedicina Molecular) |
Files in This Item:
File | Description | Size | Format | |
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663190.pdf | 894.51 kB | Adobe PDF | View/Open |
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