通过劫持CD55、CD59和H因子这三种蛋白，SARS-CoV-2 可以躲避所有三种补体系统激活途径，导致感染宿主清除病毒的能力下降或延迟。 复星医药持续在 ...

"H. pylori colonises in the stomach and starts synthesising urease, the enzyme that converts urea into ammonia, enabling ...

Walberg, C. B., Ph.D. dissertation, Univ. of Southern California (1957). Seneca, H., Lattimer, J. K., Zinsser, H. H., Donovan, J. T., Peer, P., and Stuart, P., J ...

Those subjects determined to be H. pylori-positive were requested to undertake ... gastric antrum using flexible forceps for histology, urease test and culture. A further 44 symptomatic subjects ...

The H. pylori bacterium is often transmitted through contaminated water and food. It survives in the stomach's acidic environment by producing an enzyme, urease, that neutralizes hydrochloric acid.

H. pylori eradication was evaluated by the 13 C-urea breath test, histology, or the rapid urease test. Results: The eradication rates by intention-to-treat analysis were 66.7% and 68.9% in the ...