2007
DOI: 10.4321/s1130-01082007001100006
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Flora intestinal, probióticos, prebióticos, simbióticos y alimentos novedosos

Abstract: INTRODUCCIÓNLas observaciones realizadas en modelos animales de experimentación y en seres humanos indican que la flora intestinal supone una gran cantidad de microorganismos comensales que han evolucionado en armonía con su huésped y mejorado la salud de este último (1). Estas bacterias intervienen en el desarrollo normal del sistema inmunitario y en la regulación de la respuesta a los pató-genos, y son esenciales para el establecimiento y el mantenimiento de la tolerancia inmunitaria de la mucosa (2-6). La f… Show more

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Cited by 33 publications
(20 citation statements)
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“…These organisms live in symbiotic or antagonistic relationships. Their presence in the intestine influences numerous biological functions, including oncogenesis, aging, immunity, and hormonal balance [22,24,28]. However, little is known about the interaction between intestinal microflora and antioxidant enzyme activity, although there have been some reports on leukocyte function with respect to either O 2 ·-release [18,20], gastrointestinal nitric oxide (NO) generation measurements [27], or expression of GPx, which is a different antioxidant enzyme, found in the cecal mucosa of GF animals as well as CV animals [15].…”
Section: Introductionmentioning
confidence: 99%
“…These organisms live in symbiotic or antagonistic relationships. Their presence in the intestine influences numerous biological functions, including oncogenesis, aging, immunity, and hormonal balance [22,24,28]. However, little is known about the interaction between intestinal microflora and antioxidant enzyme activity, although there have been some reports on leukocyte function with respect to either O 2 ·-release [18,20], gastrointestinal nitric oxide (NO) generation measurements [27], or expression of GPx, which is a different antioxidant enzyme, found in the cecal mucosa of GF animals as well as CV animals [15].…”
Section: Introductionmentioning
confidence: 99%
“…The use of probiotics and prebiotics in the treatment of bacterial infection has been called a promising intervention [9,11] with favorable impact on mucosal immunity; so, nutritional supplementation with symbiotics may prevent damage and confer beneficial effects in the host through maintaining barrier function and immune defense by preventing the colonization of pathogens. The term symbiotic refers to the mixture that combines live beneficial microorganisms (probiotics) that restore the intestinal microbiota, and selective components that stimulate bacteria growth like oligosaccharide (prebiotics), modulating the immune response against infectious agents [10,[15][16][17] . Moreover, symbiotics are capable of altering the composition of the colonic microbiota, reducing inflammatory processes in the gut mucosa.…”
Section: Introductionmentioning
confidence: 99%
“…Experiments performed in animals and in humans suggest that the intestinal microbiota affects the production of colonocyte substrates, such as butyrate (from fiber) and vitamins. The butyrate produced in the colon regulates the differentiation of mucosal cells and reduces apoptosis, which, in turn, controls inflammation and prevents cancer development (Tsukahara et al, 2006;Peña, 2007). Although the inhibition of cancer cells does not have a practical interest for the production of animals with a short life cycle, butyrate is important, because it promotes mucus release and the absorption of water and minerals, and consequently, influences intestinal health (Holtug et al, 1992;Shimotoyodome et al, 2000;Tsukahara et al, 2003;Tsukahara et al, 2006).…”
Section: Substrates and Bacterial Metabolitesmentioning
confidence: 99%