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2015 ; 31
(2
): 86-92
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Comparison of three diagnostic assays for the identification of Helicobacter spp
in laboratory dogs
#MMPMID26155203
Hong S
; Chung Y
; Kang WG
; Choi YS
; Kim O
Lab Anim Res
2015[Jun]; 31
(2
): 86-92
PMID26155203
show ga
A number of Helicobacter species may confound experimental data because of their
association with disease progressing in various kinds of laboratory animals.
Screening of Helicobacter species is particularly desirable, because they are
prevalent in commercial and research animal facilities. The aim of the present
study was to compare three diagnostic methods [e.g. Helicobacter stool antigen
kit (HpSA), polymerase chain reaction (PCR) and rapid urease test (RUT)] for the
identification of Helicobacter spp. in stools or gastric biopsy specimens
collected from eight dogs suffering from gastritis. The gastroscopic biopsy
specimens were tested using RUT and PCR, while stool specimens were evaluated
using both HpSA and PCR. DNAs from the gastric biopsies and stool specimens were
analyzed by both a consensus PCR that amplified the RNA polymerase
beta-subunit-coding gene (rpoB) of Helicobacter spp. and a species-specific PCR
to amplify the urease B gene of Helicobacter heilmannii, Helicobacter pylori, and
Helicobacter felis. Helicobacter spp. were detected in 62.5% of the dogs, while
H. heilmannii and H. felis were identified in 37.5 and 25% of the dogs,
respectively. The HpSA did not efficiently detect Helicobacter spp. in the stool
samples compared to the RUT and PCR assays, both of which successfully detected
Helicobacter spp. in the two sample types. Finally, we recommend that consensus
PCR with stool specimens could be used before the species-specific PCR for
identifying Helicobacter species in laboratory dogs.