Pesquisa de Helicobacter spp. na mucosa gástrica de cães no Estado da Paraíba.

Abstract

In dogs have found the presence of several species of the genus Helicobacter transmission path as having the most accepted is by the oral-oral and/or anal-oral routes. The discovery of Helicobacter spp. in feces and saliva of dogs in a related culture exam of H. felis from the stomach of humans, reflects this zoonotic potential of species that colonize the canine and feline stomach, whereas the infection of H. pylori in humans are not correlated with pets. Aimed to verify the presence of bacteria of the Helicobacter genus in the gastric mucosa of dogs of Environmental Management and Zoonosi and identify the risk factors associated with the presence of bacteria. Of the 100 samples of canine gastric mucosa 88% (88/100) were positive for Helicobacter spp. in the urease test. There was no association (p> 0.05) of any of the three variables (age, sex and race) analyzed with the results of the urease test, Gram and microbiological culture. The histopathological results were mild to moderate inflammation in 47.6% (20/42) stomachs, and were not found severe inflammation. Dogs with mild inflammation were five (11.9%) were positive for Helicobacter spp. and one (2.4%) negative. With moderate inflammation Three (7,1%) were negatives for Helicobacter spp., and eleven (26.2%) were positive, these three (7,1%) dogs presented hyperplasia of lymphoid follicles. Dogs with normal histology of the stomach were 52.4% (22/42), 14 (33.3%) were positive for Helicobacter spp. and 8 (19.1%) were negative. The bacterium Helicobacter spp. has a high prevalence in the dogs of zoonosi and cause gastritis characterized by a lymphocytic infiltrate in the lamina propria and lymphoid follicular hyperplasia, being necessary a thorough assessment of the risk factors for infection in these animals, as well as further research on the age which bacteria transmission occurs. Should be investigated the role of the dogs as reservoir of this microorganism and the potential risk of transmission to humans.