نتایج جستجو برای: n meningitidis
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Neisseria meningitidis is a global cause of meningitis and septicemia. Immunity to N. meningitidis involves both innate and specific mechanisms with killing by serum bactericidal activity and phagocytic cells. C-reactive protein (CRP) is an acute-phase serum protein that has been shown to help protect the host from several bacterial pathogens, which it recognizes by binding to phosphorylcholine...
As part of the World Health Organization Invasive Bacterial-Vaccine Preventable Diseases (IB-VPD) surveillance in Suva, Fiji, cerebrospinal fluid (CSF) samples from suspected meningitis patients of all ages were examined by traditional methods (culture, Gram stain, and latex agglutination for bacterial antigen) and qPCR for Streptococcus pneumoniae, Neisseria meningitidis, and Haemophilus influ...
Epidemiology There is general agreement that oropharyngeal infection occurs most frequently in homosexual men, followed by women and heterosexual men. The table gives comparative prevalences from four studies of patients with gonorrhoea. Weisner et al4 found the oropharyngeal isolation rate of neisseria species from his population was: N meningitidis 17.2%; N gonorrhoeae 5.6% and N lactamica 1 ...
INTRODUCTION To determine the oropharyngeal carriage rates and serogroups of Neisseria meningitidis in primary school children in Manisa, Turkey as well as the prevalence and penicillin resistance of N. meningitidis. MATERIALS AND METHODS Throat swabs obtained from 1128 children were cultured and recovered organisms were tested by disk diffusion method and the E-test for antimicrobial suscept...
INTRODUCTION Neisseria meningitidis (N. meningitidis) is associated with severe invasive infections such as meningitis and fulminant septicemia. Septic arthritis due to N. meningitidis is rare and bone infections have been reported exceptionally. We report the case of a 1-year old girl who presented with a painful, swollen right knee, accompanied by fever and agitation. Arthrocentesis of the ri...
Neisseria meningitidis N. meningitidis, or meningococcus, is an aerobic, gramnegative diplococcus, closely related to N. gonorrhoeae, and to several nonpathogenic Neisseria species, such as N. lactamica. The organism has both an inner (cytoplasmic) and outer membrane, separated by a cell wall. The outer membrane contains several protein structures that enable the bacteria to interact with the h...
UNLABELLED Neisseria meningitidis, an exclusively human pathogen and the leading cause of bacterial meningitis, must adapt to different host niches during human infection. N. meningitidis can utilize a restricted range of carbon sources, including lactate, glucose, and pyruvate, whose concentrations vary in host niches. Microarray analysis of N. meningitidis grown in a chemically defined medium...
Fluorescent amplified-fragment length polymorphism (FAFLP), a genotyping technique with phylogenetic significance, was applied to 123 isolates of Neisseria meningitidis. Nine of these were from an outbreak in a British university; 9 were from a recent outbreak in Pontypridd, Glamorgan; 15 were from sporadic cases of meningococcal disease; 26 were from the National Collection of Type Cultures; 5...
Neisseria meningitidis, the causative agent of meningococcal disease in humans, is likely to be exposed to nitrosative stress during natural colonization and disease. The genome of N. meningitidis includes the genes aniA and norB, predicted to encode nitrite reductase and nitric oxide (NO) reductase, respectively. These gene products should allow the bacterium to denitrify nitrite to nitrous ox...
Neisseria meningitidis is a harmless commensal bacterium finely adapted to humans. Unfortunately, under "privileged" conditions, it adopts a "devious" lifestyle leading to uncontrolled behavior characterized by the unleashing of molecular weapons causing potentially lethal disease such as sepsis and acute meningitis. Indeed, despite the lack of a classic repertoire of virulence genes in N. meni...
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