UNASSIGNED: @entity1534 is a Gram-negative   -proteobacterium that colonizes about 50% of @entity1 . Some pertinent characteristics are that it can survive the acid of the stomach, produces urease to neutralize it and is motile due to @entity661 . Not surprisingly given its wide distribution, it has long colonized mankind and its genome encodes many features that allows this. Consequently, it frequently has a persistent lifelong association with @entity1 and, differently from most pathogens that are transmitted horizontally, it is preferentially transmitted vertically, often from mother to @entity1 . A variety of genes and polymorphisms, both in @entity1534 and in @entity1 , mediate the complex host-bacterium relationship, and can also determine if and what pathologies will be triggered by the species. @entity1534 is naturally transformable, very recombinogenic and has a high mutation rate. Microbiota studies of the stomach have shown it to be an important species with a potentially regulatory role for the gastric microbial community. Likewise, epidemiological work has suggested that, while it clearly increases the risk of peptic ulcers and @entity356 in some populations, it is also associated with lower risk of @entity418 and several other important pathologies. More recently, antibacterial resistant strains have been isolated, posing a problem for public health officials who called for its eradication. Hence, study of @entity1534 and how it interacts with us can help revealing mutualistic or pathogenic interactions and the immune response in the digestive niche.

XXXX : enemy, commensal or, sometimes, friend?

@entity1 :: ('9606', 'Species') :: ['humans', 'child'] @entity661 :: ('MESH:D054549', 'Disease') :: ['apical flagella'] @entity418 :: ('MESH:D004938', 'Disease') :: ['esophageal cancer'] @entity1534 :: ('210', 'Species') :: ['H pylori', 'H. pylori', 'Helicobacter pylori'] @entity356 :: ('MESH:D013274', 'Disease') :: ['gastric cancer']
@entity1534 :: (210,Species) :: ['Helicobacter pylori']
