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Seite 1 von 25 Ergebnisse
Characterization and expression of adjacent proline iminopeptidase and aspartase genes from Eikenella corrodens.
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Two adjacent genes involved in nitrogen metabolism from Eikenella corrodens, with a potential role in pathogenesis, were studied. Proline iminopeptidase (Pip) activity, which may be essential for energy production and protection against host immune mechanisms, is exhibited by E. corrodens. Analysis
The prevalence of proline iminopeptidase negative Neisseria gonorrhoeae throughout England and Wales.
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BACKGROUND
The accurate laboratory identification of Neisseria gonorrhoeae is an essential element of the diagnosis of gonorrhoea and is particularly important for medicolegal cases. The detection of proline iminopeptidase (Pip) activity is widely used as a marker for gonococci, although Pip
Epidemiology and treatment of uncomplicated gonorrhoea caused by non-PPNG strains in Córdoba, Argentina: auxotypes, susceptibility profiles, and plasmid analyses of urethral isolates from men.
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The official records of uncomplicated gonorrhoea for Córdoba state show that between 1975 and 1985, about one in 1000 sexually active people acquired gonorrhoea each year. A study was therefore undertaken to obtain information about treatment of uncomplicated gonorrhoea, as well as the nutritional
Auxotypes and penicillin susceptibilities of Neisseria gonorrhoeae isolated from patients with gonorrhea involving two or more sites.
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A system of auxotyping described in 1973 is based on the differing nutritional requirement patterns of Neisseria gonorrhoeae strains. Our ongoing evaluation of the reliability of auxotyping has involved a study of the constancy of characteristics of gonococci isolated at one time from two or more
Epidemiology of penicillinase-producing Neisseria gonorrhoeae infections: analysis by auxotyping and serogrouping.
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Auxotyping and serogrouping by coagglutination were used to characterize penicillinase-producing Neisseria gonorrhoeae and penicillinase-negative isolates from the state of Washington, Shreveport (Louisiana), and the Far East. Fifty-four of 75 penicillinase-producing isolates (72 per cent) from
Gonorrhoea: auxotypes, serovars, and clinical manifestations among female sex workers from Kinshasa, Zaïre.
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The main question in this paper was to look at the distribution of auxotypes and serovars of Neisseria gonorrhoeae and check whether they correlate with clinical symptoms/signs among female sex workers (FSW) from Kinshasa, Zaïre. The subject were 1233 FSW enrolled in a cross sectional study on STDs
Gonorrhea in women prostitutes: clinical data and auxotypes, serovars, plasmid contents of PPNG, and susceptibility profiles.
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Eighty-nine women prostitutes who underwent clinical and microbiologic examination were found to have gonococcal infection. The median age was 22; 92.1% were from urban areas. Nearly all the women prostitutes refrained from barrier methods (92.1%) and had contact with several partners (91.0%). The
Penicillinase producing gonococci: a spent force?
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Though the incidence of gonorrhoea caused by penicillinase producing Neisseria gonorrhoeae (PPNG) strains at St Mary's Hospital rose rapidly from 1980 to reach 6.2% in 1982, it declined in 1983 (8.6%) and in 1984 (6.5%), a trend that has continued in 1985. The use of penicillinase stable antibiotics
Identification of penicillinase producing Neisseria gonorrhoeae in Chile during clinical and microbiological study of gonococcal susceptibility to antimicrobial agents.
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The first penicillinase producing isolates of Neisseria gonorrhoeae (PPNG) identified in Chile were discovered during a clinical and microbiological study to compare the efficacy of penicillin (4.8 MIU aqueous procaine penicillin G plus 1 g oral probenecid) and tetracycline (1.5 g followed by 500 mg
Development of a defined minimal medium for the growth of Neisseria gonorrhoeae.
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This investigation describes the development of a solid and a liquid medium (Gonococcal Genetic Medium; GGM) which support the rapid growth of 41 gonococcal clinical isolates and laboratory strains with a minimum number of nutritional components. The complete medium contains minimal salts, eight
Chromosomally mediated resistance in Neisseria gonorrhoeae in the United States: results of surveillance and reporting, 1983-1984.
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Between January 1983 and October 1984, 446 cases of infection due to chromosomally mediated resistance in Neisseria gonorrhoeae (CMRNG) were reported in 23 states. Eighty percent were detected as primary penicillin or ampicillin treatment failures. Gonococcal isolates were submitted from 175 (40%)
Epidemiology of PPNG infections in Amsterdam: analysis by auxanographic typing and plasmid characterisation.
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In January 1981 the incidence of penicillinase producing Neisseria gonorrhoeae (PPNG) strains in Amsterdam had increased to 18% of all new cases of gonorrhoea. Auxanographic typing in combination with plasmid determination of 729 PPNG strains showed that in 1981 the predominant and endemic types
Antimicrobial susceptibility and biochemical patterns of Neisseria gonorrhoeae strains in Vejle area, Denmark.
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BACKGROUND
Strains of Neisseria gonorrhoeae resistant to penicillin and ciprofloxacin have been isolated worldwide. Increasing number of N. gonorrhoeae that lack the enzyme proline aminopeptidase (proA-negative N. gonorrhoeae) have been detected in many countries all over the world.
OBJECTIVE
This
Chemotaxis of polymorphonuclear leukocytes from donors of different races toward Neisseria gonorrhoeae of three different auxotypes.
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Urethral gonorrhea is typified by the presence of large numbers of polymorphonuclear leukocytes, which are presumably attracted to the urethra by an as yet uncharacterized chemotaxin. Culture supernatants from three different auxotypes of Neisseria gonorrhoeae, one requiring arginine, hypoxanthine,
Does bacterial vaginosis alter the sensitivity of screening tests for Chlamydia trachomatis? An analysis of patient characteristics.
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The aim of this study was to assess if patient characteristics could influence the sensitivity of enzyme immunoassay (EIA) testing used for chlamydia screening. Our cohort consisted of 56 patients who were known polymerase chain reaction-positive for chlamydia, but with variable EIA results.
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