The effect of carbohydrates on the adherence of Pasteurella multocida to the nasal respiratory epithelium

Pasteurella multocida subsp. multocida is responsible for different diseases that generate great economic losses in farm animal. The effectiveness of immunization against those bacteria are variable and the use of antibiotics is questioned; for that reason, we investigated the potential inhibitory effect of different carbohydrates on the adherence in vivo of P. multocida to the rabbit respiratory epithelium as an alternative for the prevention of respiratory infections. Rabbits were intranasally and intratracheally inoculated with a solution containing 200 µl of 1x107 CFU of P. multocida that was previously mixed with 250 µg /200 µl of N-acetylglucosamine, alphamethylglucoside, alphamethylmannoside, N-acetylgalactosamine or sialic acid. The animals that received N-acetylglucosamine, alphamethylglucoside or alphamethylmannoside individually or a mixture of these three carbohydrates plus the bacterium, showed a signifi cant decrease (P <0.05) of the clinical symptoms, microscopic and macroscopic lesions in the nasal septa and in the lungs; also, the number of adhered bacteria to the nasal epithelium were also signifi cantly reduced. This research demonstrates for the fi rst time that such an approach could convert into a method for prevention of P. multocida infection in rabbits that is ecologically and economically safe and effective

• Autores: Gallego López, Carolina; Patiño, Pilar; Martínez, Nhora María; Iregui, Carlos Arturo
• Tipo de recurso: Article of investigation
• Fecha de publicación: 2021
• Institución: Universidad de Ciencias Aplicadas y Ambientales U.D.C.A
• Repositorio: Repositorio Institucional UDCA
• Idioma: eng
• OAI Identifier: oai:repository.udca.edu.co:11158/4262
• Acceso en línea: https://repository.udca.edu.co/handle/11158/4262; https://doi.org/10.1590/0001-3765202120190989
• Palabra clave: Bacterias; Adherencia; Carbohidratos; Pasteurella multocida
• Rights: openAccess
• License: https://creativecommons.org/licenses/by-nc-sa/4.0/legalcode.es