In vitro antagonistic effect of Lactobacillus on organisms associated with bacterial vaginosis.

微生物学 乳酸菌 阴道加德纳菌 消化链球菌 脆乳杆菌 生物 脆弱类杆菌 细菌性阴道病 粪肠球菌 阴道菌群 细菌 无乳链球菌 金黄色葡萄球菌 拟杆菌 厌氧菌 链球菌 抗生素 遗传学
作者
Magdalena Strus,Magdalena Malinowska,Piotr B Heczko
出处
期刊:PubMed 卷期号:47 (1): 41-6 被引量:14
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To assess antagonistic properties of Lactobacillus strains isolated from the vaginas of healthy women as compared to the most common bacterial agents related to vaginosis.Antagonistic activity of different Lactobacillus strains isolated from the vaginas of healthy women not treated for infections with an antibiotic for the previous three months was screened using an agar slab method. The activity was tested against test organisms associated with bacterial vaginosis and/or urinary tract infections: Staphylococcus aureus, Enterococcus faecalis, Streptococcus agalactiae, Escherichia coli, Gardnerella vaginalis, Peptostreptococcus anaerobius and Prevotella bivia.Many of the 146 Lactobacillus strains tested exerted apparent antagonistic activities against gram-positive aerobic cocci and gram-negative rods, such as S aureus and E coli, and a marked number of Lactobacillus strains inhibited facultative bacteria, such as Gardnerella vaginalis and the anaerobes P anaerobius and P bivia. Only a few lactobacilli were able to inhibit growth of E faecalis and S agalactiae. Indicator bacteria growth inhibition probably relies upon several different complementary mechanisms. The specific indicator bacteria species determines which mechanism predominates.Lactobacillus strains taken from normal vaginal flora demonstrated antagonistic activity against a variety of bacteria related to vaginal and urinary tract infections. The specific occurrence rates of active Lactobacillus strains are different, and this difference is dependent on the indicator bacteria species.

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