Live Helicobacter pylori in the root canal of endodontic-infected deciduous teeth

Background Many polymerase chain reaction (PCR)-based studies have shown that Helicobacter pylori DNA is prevalent in the oral cavity, but reports on the isolation of live bacteria are extremely rare. Thus, it is still unclear whether H. pylori can indeed survive in the oral environment. Methods Her...

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Published inJournal of gastroenterology Vol. 47; no. 8; pp. 936 - 940
Main Authors Hirsch, Christian, Tegtmeyer, Nicole, Rohde, Manfred, Rowland, Marion, Oyarzabal, Omar A., Backert, Steffen
Format Journal Article
LanguageEnglish
Published Japan Springer Japan 01.08.2012
Springer
Springer Nature B.V
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Abstract Background Many polymerase chain reaction (PCR)-based studies have shown that Helicobacter pylori DNA is prevalent in the oral cavity, but reports on the isolation of live bacteria are extremely rare. Thus, it is still unclear whether H. pylori can indeed survive in the oral environment. Methods Here we used electron microscopy, selective growth techniques, urease assays, 16S rRNA PCR, and western blotting to investigate the possible presence of live H. pylori in 10 root canal and corresponding plaque samples of endodontic-infected deciduous teeth in three children. Results Although H. pylori DNA was verifiable by PCR in several plaque and root canal samples, bacterial colonies could only be grown from two root canals, but not from plaque. These colonies were unequivocally identified as H. pylori by microscopic, genetic, and biochemical approaches. Conclusions Our findings show that root canals of endodontic-infected teeth may be a reservoir for live H. pylori that could serve as a potential source for transmission.
AbstractList Background Many polymerase chain reaction (PCR)-based studies have shown that Helicobacter pylori DNA is prevalent in the oral cavity, but reports on the isolation of live bacteria are extremely rare. Thus, it is still unclear whether H. pylori can indeed survive in the oral environment. Methods Here we used electron microscopy, selective growth techniques, urease assays, 16S rRNA PCR, and western blotting to investigate the possible presence of live H. pylori in 10 root canal and corresponding plaque samples of endodontic-infected deciduous teeth in three children. Results Although H. pylori DNA was verifiable by PCR in several plaque and root canal samples, bacterial colonies could only be grown from two root canals, but not from plaque. These colonies were unequivocally identified as H. pylori by microscopic, genetic, and biochemical approaches. Conclusions Our findings show that root canals of endodontic-infected teeth may be a reservoir for live H. pylori that could serve as a potential source for transmission.
Many polymerase chain reaction (PCR)-based studies have shown that Helicobacter pylori DNA is prevalent in the oral cavity, but reports on the isolation of live bacteria are extremely rare. Thus, it is still unclear whether H. pylori can indeed survive in the oral environment. Here we used electron microscopy, selective growth techniques, urease assays, 16S rRNA PCR, and western blotting to investigate the possible presence of live H. pylori in 10 root canal and corresponding plaque samples of endodontic-infected deciduous teeth in three children. Although H. pylori DNA was verifiable by PCR in several plaque and root canal samples, bacterial colonies could only be grown from two root canals, but not from plaque. These colonies were unequivocally identified as H. pylori by microscopic, genetic, and biochemical approaches. Our findings show that root canals of endodontic-infected teeth may be a reservoir for live H. pylori that could serve as a potential source for transmission.[PUBLICATION ABSTRACT]
BACKGROUNDMany polymerase chain reaction (PCR)-based studies have shown that Helicobacter pylori DNA is prevalent in the oral cavity, but reports on the isolation of live bacteria are extremely rare. Thus, it is still unclear whether H. pylori can indeed survive in the oral environment. METHODSHere we used electron microscopy, selective growth techniques, urease assays, 16S rRNA PCR, and western blotting to investigate the possible presence of live H. pylori in 10 root canal and corresponding plaque samples of endodontic-infected deciduous teeth in three children. RESULTSAlthough H. pylori DNA was verifiable by PCR in several plaque and root canal samples, bacterial colonies could only be grown from two root canals, but not from plaque. These colonies were unequivocally identified as H. pylori by microscopic, genetic, and biochemical approaches. CONCLUSIONSOur findings show that root canals of endodontic-infected teeth may be a reservoir for live H. pylori that could serve as a potential source for transmission.
Background Many polymerase chain reaction (PCR)-based studies have shown that Helicobacter pylori DNA is prevalent in the oral cavity, but reports on the isolation of live bacteria are extremely rare. Thus, it is still unclear whether H. pylori can indeed survive in the oral environment. Methods Here we used electron microscopy, selective growth techniques, urease assays, 16S rRNA PCR, and western blotting to investigate the possible presence of live H. pylori in 10 root canal and corresponding plaque samples of endodontic-infected deciduous teeth in three children. Results Although H. pylori DNA was verifiable by PCR in several plaque and root canal samples, bacterial colonies could only be grown from two root canals, but not from plaque. These colonies were unequivocally identified as H. pylori by microscopic, genetic, and biochemical approaches. Conclusions Our findings show that root canals of endodontic-infected teeth may be a reservoir for live H. pylori that could serve as a potential source for transmission.
Many polymerase chain reaction (PCR)-based studies have shown that Helicobacter pylori DNA is prevalent in the oral cavity, but reports on the isolation of live bacteria are extremely rare. Thus, it is still unclear whether H. pylori can indeed survive in the oral environment. Here we used electron microscopy, selective growth techniques, urease assays, 16S rRNA PCR, and western blotting to investigate the possible presence of live H. pylori in 10 root canal and corresponding plaque samples of endodontic-infected deciduous teeth in three children. Although H. pylori DNA was verifiable by PCR in several plaque and root canal samples, bacterial colonies could only be grown from two root canals, but not from plaque. These colonies were unequivocally identified as H. pylori by microscopic, genetic, and biochemical approaches. Our findings show that root canals of endodontic-infected teeth may be a reservoir for live H. pylori that could serve as a potential source for transmission.
Many polymerase chain reaction (PCR)-based studies have shown that Helicobacter pylori DNA is prevalent in the oral cavity, but reports on the isolation of live bacteria are extremely rare. Thus, it is still unclear whether H. pylori can indeed survive in the oral environment. Here we used electron microscopy, selective growth techniques, urease assays, 16S rRNA PCR, and western blotting to investigate the possible presence of live H. pylori in 10 root canal and corresponding plaque samples of endodontic-infected deciduous teeth in three children. Although H. pylori DNA was verifiable by PCR in several plaque and root canal samples, bacterial colonies could only be grown from two root canals, but not from plaque. These colonies were unequivocally identified as H. pylori by microscopic, genetic, and biochemical approaches. Our findings show that root canals of endodontic-infected teeth may be a reservoir for live H. pylori that could serve as a potential source for transmission.
Audience Academic
Author Hirsch, Christian
Rowland, Marion
Backert, Steffen
Oyarzabal, Omar A.
Tegtmeyer, Nicole
Rohde, Manfred
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  surname: Tegtmeyer
  fullname: Tegtmeyer, Nicole
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  givenname: Omar A.
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Snippet Background Many polymerase chain reaction (PCR)-based studies have shown that Helicobacter pylori DNA is prevalent in the oral cavity, but reports on the...
Many polymerase chain reaction (PCR)-based studies have shown that Helicobacter pylori DNA is prevalent in the oral cavity, but reports on the isolation of...
Background Many polymerase chain reaction (PCR)-based studies have shown that Helicobacter pylori DNA is prevalent in the oral cavity, but reports on the...
BACKGROUNDMany polymerase chain reaction (PCR)-based studies have shown that Helicobacter pylori DNA is prevalent in the oral cavity, but reports on the...
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StartPage 936
SubjectTerms Abdominal Surgery
Child, Preschool
Colorectal Surgery
Dental Caries - microbiology
Dental Plaque - microbiology
Dental Pulp Cavity - microbiology
Gastroenterology
Helicobacter Infections - microbiology
Helicobacter pylori
Helicobacter pylori - isolation & purification
Hepatology
Humans
Male
Medicine
Medicine & Public Health
Microscopy, Electron, Scanning
Polymerase Chain Reaction
Rapid Communication
RNA
Root canal therapy
Surgical Oncology
Tooth, Deciduous - microbiology
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Title Live Helicobacter pylori in the root canal of endodontic-infected deciduous teeth
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