TITLE

Vector potential of cockroaches for Helicobacter pylori infection

AUTHOR(S)
Imamura, Shigeyoshi; Kita, Masakazu; Yamaoka, Yoshio; Yamamoto, Toshiro; Ishimaru, Atsushi; Konishi, Hideyuki; Wakabayashi, Naoki; Mitsufuji, Shoji; Okanoue, Takeshi; Imanishi, Jiro
PUB. DATE
July 2003
SOURCE
American Journal of Gastroenterology;Jul2003, Vol. 98 Issue 7, p1500
SOURCE TYPE
Academic Journal
DOC. TYPE
Article
ABSTRACT
: ObjectivesThe routes of human infection with Helicobacter pylori remain unclear. In the present study, we examined cockroaches as possible vectors for transmission of H. pylori.: MethodsWe used a common species of cockroach (Periplaneta fuliginosa). After a 3-day fast, cockroaches were placed on agar plates containing freshly grown H. pylori (Sydney strain) (challenge group) or on sterile agar plates without H. pylori (control group). After 24 h of challenge, cockroaches were moved to disinfected containers, and sterile food and water were provided. The external surfaces (legs and body) and excreta of the cockroaches were sampled for culture, rapid urease test, and polymerase chain reaction (PCR).: ResultsH. pylori were culturable from the excreta of the challenge group for 24 h postchallenge. Positive rapid urease test results were obtained up to day 3, and PCR analysis was positive for H. pylori DNA up to day 7 from the excreta. In contrast, H. pylori were not culturable from the external surfaces of the cockroaches. The rapid urease test was positive for only 8 h, and PCR analysis was positive for H. pylori DNA for 1 day from the external surface.: ConclusionsCockroaches usually live in unsanitary environments and may contaminate foods and food containment areas such as pantries. Transmission of H. pylori infection could be achieved via inadvertent ingestion of foods contaminated with cockroach excreta containing viable H. pylori.
ACCESSION #
10234238

 

Related Articles

  • The probable infective role of coccoid form of Helicobacter pylori in children with dyspeptic symptoms. Ng, B.L.; Quak, S.H.; Ho, B. // Gut;Sep2002 Supplement 2, Vol. 51, pA37 

    Helicobacter pylori infections affect population of all ages. The bacterium exists in two morphological forms: the generally acceptable spiral form which converts to coccoid form under unfavourable conditions. The significance of this conversion remains controversial. The aim of this study is to...

  • Environmental risk factors affecting transmission of Helicobacter pylori infection in Egypt. Awdalla, Hala Ibrahim; Ragab, Moustfa Hassan; Hanna, Lilian Nabil // Journal of Public Health (09431853);Jun2010, Vol. 18 Issue 3, p237 

    Helicobacter pylori ( H. pylori) infection varies remarkably between and within populations suggesting the role of socioeconomic-related environmental factors. The aim of this study was to determine the prevalence of H. pylori among the studied population, to explore the effect of some...

  • Formy morfologiczne Helicobacter pylori i ich przypuszczalna rola w transmisji zakażeÅ„. Rudnicka, Karolina; Graczykowski, Maciej; Tenderenda, Michał; Chmiela, Magdalena // Advances in Hygiene & Experimental Medicine / Postepy Higieny i ;2014, Vol. 68, p227 

    More than 50% of the world's population is infected with Helicobacter pylori (H. pylori) - a Gram negative bacterium, which persists in the human stomach and duodenum, causing gastric or duodenal ulcers and gastric cancer. The majority of H. pylori cells demonstrate rod-shape morphology...

  • Entry of Helicobacter pylori into the viable but nonculturable state in a natural freshwater stream: Potential source for infection. Adams, B.L.; Bates, T.C.; Oliver, J.D. // Gut;Sep2002 Supplement 2, Vol. 51, pA6 

    Although Helicobacter pylori infects a substantial portion of the world's population, the means of transmission remains unknown. Current epidemiological evidence supports transmission by water and/or the fecal/oral route. However, attempts to isolate and culture H. pylori from potential...

  • Helicobacter pylori serostatus ini Peruvian families: The case for sibling-to-sibling transmission. Passaro, D.J.; Sisirak, J.; Maguina, P.; Gilman, R. // Gut;Sep2002 Supplement 2, Vol. 51, pA31 

    Background: Most H. pylori (Hp) infection begins in childhood, but the transmission dynamics of acute infection are not well understood. To investigate the familial determinants of pediatric Hp infection, we conducted a cross-sectional serostudy among families living in a shantytown near Lima,...

  • Role of host additive factors in the immune response to H. pylori infection. Queiroz, D.M.M.; Rocha, G.A.; Rocha, A.M.C.; Silva, L.D.; Gazzinelli, A.; Corrêa-Oliveira, R.; Bethony, J. // Gut;Sep2002 Supplement 2, Vol. 51, pA34 

    Our previous study pointed to the importance of intrafamiliar transmission of Helicobacter pylori infection. However, an aspect overlooked was the overlap between shared residence and kinship. Therefore, we evaluated the influence of demographic, environmental and host additive genetic factors...

  • First isolation of Helicobacter pylori from plaque of dental caries patients in Western Nigeria. Oyedeji, K.S.; Smith, S.I.; Opere, B.O.; Adefihan, L. // Gut;Sep2002 Supplement 2, Vol. 51, pA37 

    Background and Aim: The mode of transmission of Helicobacter pylori is still a subject of debate. Some workers have suggested faeco-oral, oraloral, water-borne etc.,. Since the most probable justification for oral-oral transmission is the isolation of the organism from oral cavity; this is a...

  • Clinical Significance of Helicobacter Species Other than Helicobacter pylori. Solnick, Jay V. // Clinical Infectious Diseases;2/1/2003, Vol. 36 Issue 3, p349 

    The cultivation of Helicobacter pylori and the recognition of its clinical significance have served to stimulate interest in bacteria associated with the gastrointestinal and hepatobiliary tracts. Many novel Helicobacter species have been identified and are increasingly recognized in association...

  • Helicobacter pylori survives in native human bile but not in growth medium supplemented with physiological concentrations of deoxycholic acid. Bohr, U.R.M.; Wolle, K.; Glasbrenner, B.; König, W.; Malfertheiner, P. // Gut;Sep2002 Supplement 2, Vol. 51, pA72 

    Objective: Recently, several authors reported that Helicobacter pylori (HP) has been detected in human bile. This observation seems to be contradictory to the finding that bile acids possess antibacterial activity against HP. Here, we present data which are compatible with both findings....

Share

Read the Article

Courtesy of VIRGINIA BEACH PUBLIC LIBRARY AND SYSTEM

Sorry, but this item is not currently available from your library.

Try another library?
Sign out of this library

Other Topics