Systemic administration of lipopolysaccharide in laying hens stimulates antimicrobial properties of egg white against Staphylococcus aureus
| Autor: | Yves Nys, Emmanuelle Helloin, L. Bedrani, Nicolas Guyot |
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| Přispěvatelé: | Unité de Recherches Avicoles (URA), Institut National de la Recherche Agronomique (INRA), Infectiologie et Santé Publique (UMR ISP), Institut National de la Recherche Agronomique (INRA)-Université de Tours (UT), Region Centre, Institut National de la Recherche Agronomique (INRA)-Université de Tours |
| Rok vydání: | 2013 |
| Předmět: |
Lipopolysaccharides
Staphylococcus aureus LPS food.ingredient Immunology Antimicrobial peptides Egg protein Gene Expression Chick Embryo Oviducts Antimicrobial activity Biology medicine.disease_cause Microbiology Avian Proteins 03 medical and health sciences chemistry.chemical_compound food Immune system Yolk Escherichia coli medicine Animals Laying hens Ovum 030304 developmental biology 0303 health sciences General Veterinary 030306 microbiology Egg Proteins Antimicrobial Immunity Innate [SDV.MP]Life Sciences [q-bio]/Microbiology and Parasitology chemistry Female Muramidase Lysozyme Egg white Chickens Antimicrobial Cationic Peptides |
| Zdroj: | Veterinary Immunology and Immunopathology Veterinary Immunology and Immunopathology, Elsevier, 2013, 152 (3-4), pp.225-236. ⟨10.1016/j.vetimm.2012.12.014⟩ |
| ISSN: | 0165-2427 |
| DOI: | 10.1016/j.vetimm.2012.12.014 |
| Popis: | International audience; The natural protective system of eggs relies on egg yolk immunoglobulins and on antimicrobial proteins/peptides mainly concentrated in the egg white. There is much evidence concerning the specific stimulation of immunoglobulins by antigens but to date, the influence of the hen milieu on the regulation of the egg innate molecular immunity has not been established. To explore the hypothesis of modulation in egg antimicrobial molecules, laying hens were immune-challenged with intravenous injections of Salmonella enterica Enteritidis lipopolysaccharide (LPS) at 24 h intervals. Eggs of the control and LPS groups were collected over a period of 21 days following the first LPS injection and the egg white activities against Staphylococcus aureus and Escherichia coli were assessed. The increase in egg white anti-S. aureus activity reached 20.9% and 23.4% (p |
| Databáze: | OpenAIRE |
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