The data demonstrate that vitamin C levels in whole blood, plasma, and gastric juice and the gastric juice pH in Korean children are closely related to the severity of H. pylori infection and the histologic changes in the stomach. These data suggest that vitamin C may play a role in determining infection and progression, and vitamin C supplementation may be an important axis for the management of H. pylori infection in children.
Toll‐like receptors (TLRs) can recognize specific signatures of invading microbial pathogens and activate a cascade of downstream signals to induce the secretion of inflammatory cytokines, chemokines, and type I interferons. The activation of TLRs triggers two downstream signaling pathways: the MyD88‐ and the TRIF‐dependent pathways. To evaluate the therapeutic potential of epoxomicin, a member of the linear peptide αʹ,βʹ‐epoxyketone first isolated from an actinomycetes strain, we examined its effects on signal transduction via TLR signaling pathways. Epoxomicin inhibited the activation of NF‐kB and IRF3 induced by TLR agonists, decreased the expression of interferon‐inducible protein‐10, and inhibited the activation of NF‐kB and IRF3 induced by overexpression of downstream signaling components of TLR signaling pathways. These results suggest that epoxomicin can regulate both the MyD88‐ and TRIF‐dependent signaling pathways of TLRs. Thus, it might have potential as a new therapeutic drug for a variety of inflammatory diseases.
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