Antibiosis between bacteria isolated from the vagina of women with and without signs of bacterial vaginosis

Nagy, Elisabeth; Petterson, Margareta; Pa, Mårdh

doi:10.1111/j.1699-0463.1991.tb01253.x

Cited by 50 publications

(33 citation statements)

References 17 publications

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“…Boyd et al (2005) found that one third (33 of 97) of strains identified via API 50 CHL were not specifically identified [49]. A discrepancy of the API 50 CHL results and the known original species was also shown by Nagy et al (1991) and Alvarez-Olmos et al (2004) [46,50]. Furthermore, even the APIweb database sometimes caused misidentification or misinterpreted results [49].…”

Section: Identification Methods For Members Of the Genus Lactobacillusmentioning

confidence: 99%

“…In addition, results of API 50 CHL stripes can show acidification processes instead of growth or fermentation processes and even oxygen or a deviation in the density of the bacterial suspension may affect the output. Misidentification and non-interpretable results are clear pitfalls of this method [46,50]. …”

Section: Identification Methods For Members Of the Genus Lactobacillusmentioning

confidence: 99%

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Timely approaches to identify probiotic species of the genus Lactobacillus

et al. 2013

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Over the past decades the use of probiotics in food has increased largely due to the manufacturer’s interest in placing “healthy” food on the market based on the consumer’s ambitions to live healthy. Due to this trend, health benefits of products containing probiotic strains such as lactobacilli are promoted and probiotic strains have been established in many different products with their numbers increasing steadily. Probiotics are used as starter cultures in dairy products such as cheese or yoghurts and in addition they are also utilized in non-dairy products such as fermented vegetables, fermented meat and pharmaceuticals, thereby, covering a large variety of products.To assure quality management, several pheno-, physico- and genotyping methods have been established to unambiguously identify probiotic lactobacilli. These methods are often specific enough to identify the probiotic strains at genus and species levels. However, the probiotic ability is often strain dependent and it is impossible to distinguish strains by basic microbiological methods.Therefore, this review aims to critically summarize and evaluate conventional identification methods for the genus Lactobacillus, complemented by techniques that are currently being developed.

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Section: Identification Methods For Members Of the Genus Lactobacillusmentioning

confidence: 99%

Section: Identification Methods For Members Of the Genus Lactobacillusmentioning

confidence: 99%

Timely approaches to identify probiotic species of the genus Lactobacillus

et al. 2013

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“…Both hydrogen peroxide producers and non-producers showed antibiosis against Mobiluncus spp. 19 (see below).…”

Section: P a T H O G E N I C M E C H A N I S M Smentioning

confidence: 99%

Bacterial vaginosis: a threat to reproductive health? Historical perspectives, current knowledge, controversies and research demands

Mårdh¹

2000

The European Journal of Contraception & Reproductive Health

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Bacterial vaginosis is a change in flora, the cause of which is still unknown in the vast majority of instances. Bacterial vaginosis has generally been used to represent any change in vaginal flora resulting in an assumed loss of lactobacilli. However, whether such a flora represents the genetically normal state of some women is poorly defined. The present 'crude' diagnosis of bacterial vaginosis ought to be refined. The proposed impact of bacterial vaginosis on adverse pregnancy outcome is contradicted by therapeutic studies involving pregnant women that result in a change in flora to a lactobacillus-dominated vaginal flora, but have no influence on the course ofpregnancy. Most therapies recommended for bacterial vaginosis in non-pregnant women are often successful in the short term, but usually unsuccessful if the follow-up period after finishing therapy is prolonged. Although bacterial vaginosis is generally believed to be an endogenous condition, a number of behavioral factors are involved, such as the use of contraceptive and intimate hygiene products and smoking habits. Although bacterial vaginosis is not considered a true sexually transmitted infection, it is correlated to sexual activities. The current review elaborates on these matters and on the vaginal microbial ecology.

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“…6 Moreover, this symbiotic relationship with the production of ammonia would cause a shift to a more alkaline pH, which is inhospitable to lactobacilli. 7 Studies have shown that the addition of anaerobes to a G. vaginalis biofilm enhances the growth of G. vaginalis. 8 These symbiotic relationships could be responsible for the microbiological findings that define BV as well as the typical vaginal signs (Sloughing of the vaginal epithelium visualized as 'clue cells') and amine odor resulting from metabolic by-products of the increased numbers of BVassociated anaerobes.…”

Section: Introductionmentioning

confidence: 99%