The thioredoxin (Trx) system, which is composed of NADPH, thioredoxin reductase (TrxR),
and thioredoxin, is a key antioxidant system in defense against oxidative stress through its …

Helicobacter pylori is the first formally recognized bacterial carcinogen and is one of the
most successful human pathogens, as over half of the world's population is colonized with …

Background Helicobacter pylori is well adapted to colonize the epithelial surface of the
human gastric mucosa and can cause persistent infections. In order to infect the gastric …

抄録 The stomach is a sensitive digestive organ that is susceptible and exposed to
exogenous pathogens from the diet. In response to such pathogens, the stomach induces …

The gastric pathogen Helicobacter pylori induces a strong inflammatory host response, yet
the bacterium maintains long‐term persistence in the host. H. pylori combats oxidative stress …

Iron, as the ferrous or ferric ion, is essential for the life processes of all eukaryotes and most
prokaryotes; however, the element is toxic when in excess of that needed for cellular …

Explaining the adaptive value of sex is one of the great outstanding problems in biology. The
challenge comes from the difficulty in identifying the benefits provided by sex, which must …

We identified and characterized the iron-binding protein Dps from Campylobacter jejuni.
Electron microscopic analysis of this protein revealed a spherical structure of 8.5 nm in …

Helicobacter pylori, an oxygen-sensitive microaerophilic bacterium, contains many
antioxidant proteins, among which alkylhydroperoxide reductase (AhpC) is the most …

Borrelia burgdorferi survives in an enzootic cycle, and Dps proteins protect DNA against
damage during starvation or oxidative stress. The role of a Dps homologue encoded by …