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Molecular expression of Villin in jejunum of weaned pigs after oral intake of LPS from E. coli/Expresión molecular de la Vilina en yeyuno de lechones posdestete que consumieron LPS de E. coli/Expressao molecular da Vilina no jejuno de leitoes recem desmamados que consumiram LPS de E. coli
This experiment evaluated the effect of oral intake of E. coli lipopolysaccharide (LPS) by weaned pigs on the molecular expression of villin in jejunum. A total of 52 pigs were used. Pigs were sequentially slaughtered to take the jejunum on days 1 (weaning day, at 21 days of age), 5, 7, and 10 post-...
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Published in: | CES medicina veterinaria y zootecnia 2013-07, Vol.8 (2), p.32 |
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Main Authors: | , , |
Format: | Article |
Language: | Spanish |
Online Access: | Get full text |
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Summary: | This experiment evaluated the effect of oral intake of E. coli lipopolysaccharide (LPS) by weaned pigs on the molecular expression of villin in jejunum. A total of 52 pigs were used. Pigs were sequentially slaughtered to take the jejunum on days 1 (weaning day, at 21 days of age), 5, 7, and 10 post-weaning. Intestinal inflammation was induced by feeding the animals a basal diet supplemented with one of four LPS levels (0, 0.3, 0.5, and 1.0 [micro]g/mg feed). A completely randomized block design was used in 4X4 factorial arrangement. Animals fed the diet with the highest LPS level of inclusion showed a decreased (P < 0.01) molecular expression of villin. In conclusion, LPS from E. coli decreases villin expression, which is directly implicated in intestinal morphology changes, specifically decreasing height and increasing the width of the villi. This effect probably contributes to decreased intestinal absorption of nutrients and also to ocurrence of postweaning diarrhea syndrome. Key words diarrhea, fever, piglet, weaning. Con el objetivo de evaluar el efecto la adicion de lipopolisacarido LPS de E. coli sobre la expresion molecular de vilina en yeyuno de lechones posdestete, se sacrificaron 52 lechones escalonadamente los dias 1 (21 dias de edad, dia del destete), 5, 7 y 10 posdestete, y se les extrajo completamente el yeyuno para la evaluacion de la expresion molecular de vilina. Para inducir la inflamacion intestinal los animales fueron alimentados con una dieta basal, adicionada con cuatro niveles de LPS (0, 0.3, 0.5 y 1.0 [micro]g/mg de alimento). El diseno estadistico utilizado fue de bloques al azar en arreglo factorial de 4X4. Se observo una disminucion (P < 0.01) en la expresion molecular de vilina en los animales que consumieron la dieta con mayor nivel de inclusion de LPS. El LPS de E. coli disminuye la expresion de vilina, lo que esta directamente implicado en los cambios morfologicos intestinales, especificamente en la disminucion de la altura y el aumento del el ancho de las vellosidades. Este efecto probablemente contribuye a la disminucion de la absorcion intestinal de nutrientes y a la presentacion del sindrome de diarrea posdestete. Palabras clave destete, diarreas, fiebre, lechon. Teve-se como objetivo avaliar a adiqao de lipopolissacarideos LPS de E. coli sobre a expressao molecular da Vilina no jejuno de leitoes pos-desmame. Para isto, abateram-se 52 leitoes nos dias 1, 5, 7 e 10 apos desmame (desmame aos 21 dias de idade, este e o dia z |
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ISSN: | 1900-9607 1900-9607 |