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Effect of Escherichia Coli Infection on Metabolism of Dietary Protein in Intestine

Author(s):

Xiao-Pei Peng, Wei Ding, Jian-Min Ma, Jie Zhang, Jian Sun, Yun Cao, Li-Hui Lei, Jinshan Zhao and Yun-Fu Li*   Pages 1 - 5 ( 5 )

Abstract:


Dietary proteins are linked to the pathogenic Escherichia coli (E. coli) through the intestinal tract, which is the site where both dietary proteins metabolized and pathogenic E. coli strains play a pathogenic role. Dietary proteins are degraded by enzymes in the intestine lumen and their metabolites are transferred into enterocytes to be further metabolized. Seven diarrheagenic E. coli pathotypes have been identified, and they damage the intestinal epithelium through physical injury and effector proteins, which lead to inhibit the digestibility and absorption of dietary proteins in the intestine tract. But the increased tryptophan (Trp) content in the feed, low-protein diet or milk fractions supplementation are effective to prevent and control infections by pathogenic E. coli in the intestine.

Keywords:

Diarrheagenic E. Coli, Dietary Protein, Enterocyte, Effector Protein, Intestine

Affiliation:

Department of Animal Husbandry and Veterinary Medicine, Beijing Vocational College of Agriculture, Beijing, Department of Gerontology, Shanghai General Hospital, Shanghai Jiao Tong University, Department of Animal Husbandry and Veterinary Medicine, Beijing Vocational College of Agriculture, Beijing, Department of Animal Husbandry and Veterinary Medicine, Beijing Vocational College of Agriculture, Beijing, Department of Animal Husbandry and Veterinary Medicine, Beijing Vocational College of Agriculture, Beijing, Department of Animal Husbandry and Veterinary Medicine, Beijing Vocational College of Agriculture, Beijing, Department of Animal Husbandry and Veterinary Medicine, Beijing Vocational College of Agriculture, Beijing, College of Animal Science and Technology, Qingdao Agricultural University, Shandong, Beijing Vocational College of Agriculture, Beijing



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