Histopathological analogies in chronic pulmonary lesions between cattle and humans: basis for an alternative animal model.
Most of the natural cases of pneumonia in feedlot cattle are characterized by a longer clinical course due to chronic lung lesions. Microscopically, these lesions include interstitial fibroplasia, bronchitis, bronchiectasis, bronchiolitis obliterans, and epithelial metaplasia of the airways. Herein, the aim was to review, under a medical perspective, the pathologic mechanisms operating in these chronic pneumonic lesions in calves. Based on the similarities of these changes to those reported in bronchiolitis obliterans/organising pneumonia (BO/OP) and chronic obstructive pulmonary disease (COPD) in human beings, calves are proposed as an alternative animal model.
Pathobiology Group, Faculty of Veterinary Medicine, Autonomous University of Nuevo León, Avenida Universidad S/N Ciudad Universitaria, 66451 San Nicolas de los Garza, NL, Mexico.
Rafael
R
Ramírez-Romero
Alicia M
AM
Nevárez-Garza
Luis E
LE
Rodríguez-Tovar
Alfredo
A
Wong-González
Rogelio A
RA
Ledezma-Torres
Gustavo
G
Hernández-Vidal
D000818:Animals; D002417:Cattle; D004195:Disease Models, Animal; D006801:Humans; D008168:Lung / Q000473:pathology*; D055370:Lung Injury / Q000150:complications* / Q000473:pathology*; D011014:Pneumonia / Q000150:complications / Q000473:pathology; D029424:Pulmonary Disease, Chronic Obstructive / Q000150:complications* / Q000473:pathology*; D013045:Species Specificity