Arginine metabolism in uricotelic species
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| Natura: | Artículo científico |
| Lingua: | en |
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Universidade Estadual de Maringá
2010
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| _version_ | 1876470761585115136 |
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| author | Jovanir Inês Müller Fernandes |
| author_facet | Jovanir Inês Müller Fernandes |
| contents | Arginine metabolism in uricotelic species Jovanir Inês Müller Fernandes Alice Eiko Murakami Agrociencias creatine polyamines urea cycle nitric oxide immune system Due to the lack of a complete urea cycle, uricotelic species, such as broilers, are not able to synthesize de novo arginine (Arg), thus depending exclusively on dietary Arg. High levels of dietary lysine (Lys) increase the demand for Arg because of the antagonistic relationship between these amino acids. The Arg-Lys antagonism promotes an expressive increase in the renal Arg activity and consequently induces the degradation of Arg and the decrease in the activity of glycine amidinotransferase, an enzyme that uses Arg in the synthesis of muscle creatin. Arg is considered an important modulator of immunological and physiological processes. The degradation of Arg produces ornithine, a precursor of polyamines that are key to cell division, DNA synthesis, and cell cycle regulation. Arg participates in the synthesis of nitric oxide (NO), a highly reactive free radical in cells and membranes and participates in several cell processes, including in neurotransmission and immune response. Arg is also considered a potent secretagogue of insulin, growth hormone, and IGF-I in the blood stream. Exclusively vegetarian diets may not provide an adequate supply of Arg, which is required for maximum production and for the immune system of current broiler lineages. 2010 artículo científico 1806-2636 https://www.redalyc.org/articulo.oa?id=303126502001 en http://www.redalyc.org/revista.oa?id=3031 Acta Scientiarum. Animal Sciences application/pdf Universidade Estadual de Maringá Acta Scientiarum. Animal Sciences (Brasil) Num.4 Vol.32 |
| format | Artículo científico |
| id | redalyc_303126502001 |
| institution | Redalyc |
| language | en |
| publishDate | 2010 |
| publisher | Universidade Estadual de Maringá |
| spellingShingle | Arginine metabolism in uricotelic species Jovanir Inês Müller Fernandes Agrociencias creatine polyamines urea cycle nitric oxide immune system Arginine metabolism in uricotelic species Jovanir Inês Müller Fernandes Alice Eiko Murakami Agrociencias creatine polyamines urea cycle nitric oxide immune system Due to the lack of a complete urea cycle, uricotelic species, such as broilers, are not able to synthesize de novo arginine (Arg), thus depending exclusively on dietary Arg. High levels of dietary lysine (Lys) increase the demand for Arg because of the antagonistic relationship between these amino acids. The Arg-Lys antagonism promotes an expressive increase in the renal Arg activity and consequently induces the degradation of Arg and the decrease in the activity of glycine amidinotransferase, an enzyme that uses Arg in the synthesis of muscle creatin. Arg is considered an important modulator of immunological and physiological processes. The degradation of Arg produces ornithine, a precursor of polyamines that are key to cell division, DNA synthesis, and cell cycle regulation. Arg participates in the synthesis of nitric oxide (NO), a highly reactive free radical in cells and membranes and participates in several cell processes, including in neurotransmission and immune response. Arg is also considered a potent secretagogue of insulin, growth hormone, and IGF-I in the blood stream. Exclusively vegetarian diets may not provide an adequate supply of Arg, which is required for maximum production and for the immune system of current broiler lineages. 2010 artículo científico 1806-2636 https://www.redalyc.org/articulo.oa?id=303126502001 en http://www.redalyc.org/revista.oa?id=3031 Acta Scientiarum. Animal Sciences application/pdf Universidade Estadual de Maringá Acta Scientiarum. Animal Sciences (Brasil) Num.4 Vol.32 |
| title | Arginine metabolism in uricotelic species |
| topic | Agrociencias creatine polyamines urea cycle nitric oxide immune system |
| url | https://www.redalyc.org/articulo.oa?id=303126502001 |