Presence and significance of Helicobacter spp. in the gastric mucosa of Portuguese dogs

Gut Pathogens
Irina AmorimFátima Gärtner


Non-Helicobacter pylori Helicobacters (NHPH) are also able to cause disease in humans. Dogs are a natural reservoir for many of these species. Close and intense human contact with animals has been identified as a risk factor and therefore, an important zoonotic significance has been attributed to NHPH. To determine the prevalence of Helicobacter species and the gastric histopathological changes associated, gastric mucosa samples of 69 dogs were evaluated. Only one dog presented a normal histopathological mucosa with absence of spiral-shaped organisms. A normal gastric mucosa and the presence of spiral-shaped bacteria was observed in two dogs. All remaining animals presented histopathological changes representative of gastritis. Helicobacter species were detected in 60 dogs (87.0%) by at least one detection method. Histological, histochemical and immunohistochemical evaluations revealed that Helicobacter spp. were present in 45 (65.2%), 52 (75.4%) and 57 (82.6%) dogs, respectively. Spiral-shaped bacteria were detected by qPCR analysis in 33 (47.8%) dogs. H. heilmannii-like organisms were identified in 22 animals (66.7%) and predominantly in the antral gastric region. H. salomonis was the second most prevalent species (51.5%) alt...Continue Reading


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Jan 18, 2016·Journal of Comparative Pathology·I AmorimF Gärtner
Mar 29, 2016·Veterinary Microbiology·Ramesh Babu NamburiMirko Rossi
Sep 16, 2015·Helicobacter·Bram FlahouKeigo Shibayama
Apr 21, 2016·Polish Journal of Veterinary Sciences·M JankowskiM Biernat
Aug 24, 2016·Veterinary and Comparative Oncology·S HugenP J J Mandigers
Feb 13, 2021·Veterinary Medicine International·Daniel D Guerra SegundoSaulo T L Pinto Filho
Jun 3, 2021·Animals : an Open Access Journal From MDPI·Alexandros HardasSimon L Priestnall
Jun 22, 2021·Critical Reviews in Microbiology·Sofia Ochoa, Luis Collado

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