DNA DAMAGE TRIGGERS GENETIC EXCHANGE IN HELICOBACTER PYLORI.

DNA damage triggers genetic exchange in Helicobacter pylori.

Many organisms respond to DNA damage by inducing expression of DNA repair genes.We find that the human stomach pathogen Helicobacter pylori instead induces transcription and translation of ORG CURCUMIN + BIO PERIN natural competence genes, thus increasing transformation frequency.Transcription of a lysozyme-like protein that promotes DNA donation f

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Secoiridoids from the Seed of Gonocaryum calleryanum and Their Inhibitory Potential on LPS-Induced Tumor Necrosis Factor and Nitric Oxide Production

Three new secoiridoid constituents, goncarin A−C (1–3), and a new derivative, goncarin A monoacetate (4), along with two known lignins, pinoresinol (5) and paulownin (6), were isolated from Accessories the seed of Gonocaryum calleryanum (Baill.) Becc.The structures of the new metabolites were determined on the basis of extensive spectro

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Surgical correction of postoperative astigmatism

The photokeratoscope has increased the understanding of the aspheric nature of the cornea as well as a better understanding of normal corneal topography.This has significantly affected the development of newer and more predictable models of surgical astigmatic correction.Relaxing incisions effectively flatten the steeper meridian an equivalent amou

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