Helicobacter spp. Other Than Helicobacter pylori
Identifieur interne : 000588 ( Main/Exploration ); précédent : 000587; suivant : 000589Helicobacter spp. Other Than Helicobacter pylori
Auteurs : Arinze S. Okoli [Australie] ; Armelle Menard [France] ; George L. Mendz [Australie]Source :
- Helicobacter [ 1083-4389 ] ; 2009-09.
English descriptors
- KwdEn :
Abstract
Non‐H. pyloriHelicobacter species (NHPHS) are associated with several important human and animal diseases. In the past year research into this group of bacteria has continued to gain attention, and novel species have been described in new niches owing to improvements in detection methods. Polymerase chain reaction and/or sequencing remain the gold standard for the detection of this genus. New insights into the pathogenesis of the NHPHS in hepatobiliary, gastric, and intestinal diseases were gained. In particular, data revealed interaction between hepatic steatosis and infectious hepatitis in the development of hepatocellular carcinoma. Evidence of an association between hepatitis C virus and Helicobacter spp. in hepatocarcinoma development was also provided; and male sex hormone signaling appeared to influence infectious hepatitis induced by Helicobacter hepaticus. More findings support an association between Helicobacter heilmannii and gastric adenocarcinoma; and in mice, mucins MUC4 and MUC5 but not MUC1 influence the colonization and pathogenesis of Helicobacter felis. Data indicated that the roles of the adaptive immune system in H. hepaticus‐induced intestinal tumorigenesis are different in the small and large intestines, and environmental factors, such as bile acids may modulate H. hepaticus carcinogenic potential. New reports in the prevention and eradication of NHPHS showed a protective response against Helicobacter suis induced by vaccine administration, and a successful cross‐foster rederivation method successfully eradicated Helicobacter spp. from contaminated mice litters. Overall, the studies provided insights into the pathophysiology of Helicobacter species other than Helicobacter pylori.
Url:
DOI: 10.1111/j.1523-5378.2009.00701.x
Affiliations:
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In the past year research into this group of bacteria has continued to gain attention, and novel species have been described in new niches owing to improvements in detection methods. Polymerase chain reaction and/or sequencing remain the gold standard for the detection of this genus. New insights into the pathogenesis of the NHPHS in hepatobiliary, gastric, and intestinal diseases were gained. In particular, data revealed interaction between hepatic steatosis and infectious hepatitis in the development of hepatocellular carcinoma. Evidence of an association between hepatitis C virus and Helicobacter spp. in hepatocarcinoma development was also provided; and male sex hormone signaling appeared to influence infectious hepatitis induced by Helicobacter hepaticus. More findings support an association between Helicobacter heilmannii and gastric adenocarcinoma; and in mice, mucins MUC4 and MUC5 but not MUC1 influence the colonization and pathogenesis of Helicobacter felis. Data indicated that the roles of the adaptive immune system in H. hepaticus‐induced intestinal tumorigenesis are different in the small and large intestines, and environmental factors, such as bile acids may modulate H. hepaticus carcinogenic potential. New reports in the prevention and eradication of NHPHS showed a protective response against Helicobacter suis induced by vaccine administration, and a successful cross‐foster rederivation method successfully eradicated Helicobacter spp. from contaminated mice litters. 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Mendz</name></country><country name="France"><region name="Nouvelle-Aquitaine"><name sortKey="Menard, Armelle" sort="Menard, Armelle" uniqKey="Menard A" first="Armelle" last="Menard">Armelle Menard</name></region><name sortKey="Menard, Armelle" sort="Menard, Armelle" uniqKey="Menard A" first="Armelle" last="Menard">Armelle Menard</name></country></tree></affiliations></record>Pour manipuler ce document sous Unix (Dilib)
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