نتایج جستجو برای: omv
تعداد نتایج: 291 فیلتر نتایج به سال:
BACKGROUND Natural immunity to Neisseria meningitidis may result from nasopharyngeal carriage of closely related commensals, such as Neisseria lactamica. METHODS We enrolled 61 students with no current carriage of Neisseria species and inoculated them intranasally with 10,000 colony-forming units of Neisseria lactamica or sham control. Colonization was monitored in oropharyngeal samples over ...
Helicobacter pylori persistence is associated with its capacity to develop biofilms as a response to changing environmental conditions and stress. Extracellular DNA (eDNA) is a component of H. pylori biofilm matrix but the lack of DNase I activity supports the hypothesis that eDNA might be protected by other extracellular polymeric substances (EPS) and/or Outer Membrane Vesicles (OMVs), which b...
Brain stem signals that generate saccadic eye movements originate in the superior colliculus. They reach the pontine burst generator for horizontal saccades via short-latency pathways and a longer pathway through the oculomotor vermis (OMV) of the cerebellum. Lesion studies implicate the OMV in the adaptation of saccade amplitude that occurs when saccades become inaccurate because of extraocula...
The utility of wild-type outer membrane vesicle (wtOMV) vaccines against serogroup B (MenB) meningococcal disease has been explored since the 1970s. Public health interventions in Cuba, Norway and New Zealand have demonstrated that these protein-based vaccines can prevent MenB disease. Data from large clinical studies and retrospective statistical analyses in New Zealand give effectiveness esti...
The rabbit pyrogen test was developed in the early 1900's to detect contaminating pyrogens in parenteral medicines. Since its conception alternative methods with improved sensitivity, relevancy and which are ethically more acceptable have been developed. However, the test is a current Pharmacopeial method and is used to evaluate the pyrogen content of some vaccines. In this article the limitati...
Gram-negative bacteria outer membrane vesicles (OMVs) are extracellularly released blebs, constantly detaching from the bacterial cell surface. Being ubiquitous among bacteria and diverse in content, OMVs have a plethora of functions: promoting virulence, mediating bacterial cell–cell communication, modulating host immune response, and more. Though most research on OMVs has been carried out on ...
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