European journal of ophthalmology · 1998
Slime production by coagulase-negative staphylococci isolated in chronic blepharitis.
Сравнительное исследованиеСтатьяНазвание и аннотация: Перевод в очереди
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Oto S, Aydin P, Ciftçioglu N, Dursun D
Аннотация
BACKGROUND: The purpose of the study was to determine the impact of slime-producing strains of coagulase-negative staphylococci (CNS) on non-ulcerative blepharitis. Formerly considered harmless organisms, CNS are now recognised as opportunistic pathogens. Although these microorganisms are a component of normal conjunctival flora, they often produce the typical signs and symptoms of chronic staphylococcal blepharoconjunctivitis. Certain strains produce a polysaccharide extracellular material called "slime". Slime production is considered to be associated with the virulence of the organism.
METHODS: Swabs were taken from the lids of 38 eyes of 19 patients with chronic non-ulcerative blepharitis and cultured for CNS. A group of 42 normal control eyes were similarly sampled. The strains of CNS isolated from 26 eyes (68.4%) of the patients with blepharitis and 25 eyes (59.5%) of the normal subjects were studied for slime layer production.
RESULTS: No significant difference was found between normal subjects and patients in the incidence of slime producing CNS strains from the conjunctiva. The antibiotic sensitivity profiles of the slime-producing strains were no different from the slime-negative isolates in the blepharitis (p=0.85) and normal group (p=0.25).
CONCLUSIONS: Our data suggest that slime production by CNS does not play a significant role in the pathogenesis of staphylococcal blepharitis.
METHODS: Swabs were taken from the lids of 38 eyes of 19 patients with chronic non-ulcerative blepharitis and cultured for CNS. A group of 42 normal control eyes were similarly sampled. The strains of CNS isolated from 26 eyes (68.4%) of the patients with blepharitis and 25 eyes (59.5%) of the normal subjects were studied for slime layer production.
RESULTS: No significant difference was found between normal subjects and patients in the incidence of slime producing CNS strains from the conjunctiva. The antibiotic sensitivity profiles of the slime-producing strains were no different from the slime-negative isolates in the blepharitis (p=0.85) and normal group (p=0.25).
CONCLUSIONS: Our data suggest that slime production by CNS does not play a significant role in the pathogenesis of staphylococcal blepharitis.