María Silvina Juárez Tomás

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Restoration of the balance of different ecological niches has been proposed as a way to control the income of pathogenic microorganisms. The genus Lactobacillus has been used in different human and animal tracts as probiotic microorganisms with this objective in mind. The characteristics of the strains proposed as probiotics have been published or patented(More)
OBJECTIVE The purpose of this study was to determine the optimal conditions for the growth and hydrogen peroxide production by vaginal lactobacilli. STUDY DESIGN Two vaginal lactobacillus strains were cultured under different growth conditions (temperature, pH, agitation, and growth media) with a fractional factorial experimental design. RESULTS The(More)
Adhesion and biofilm formation are strain properties that reportedly contribute to the permanence of lactobacilli in the human vagina. The kinetics of biofilm formation and the chemical nature of the biofilm matrix formed by Lactobacillus reuteri CRL (Centro de Referencia para Lactobacilos Culture Collection) 1324 and Lactobacillus rhamnosus CRL 1332,(More)
Vaginal probiotics containing lactic acid bacteria with activity towards pathogenic microorganisms that cause urogenital tract infections have been proposed as a valid strategy for their prophylaxis and therapy. A murine experimental model was set up to evaluate the colonization capability of beneficial human lactobacilli and their effects on the mouse(More)
Lactobacilli are the predominant microorganisms of the vaginal bacterial microbiota, and they play a major role in the maintenance of a healthy urogenital tract. In consequence, the interest in their potential use as probiotics has significantly increased during the last decade. In the present study we assessed the influence of different excipients on the(More)
Vaginal Lactobacillus salivarius CRL 1328 (Centro de Referencia para Lactobacilos Culture Collection) or the bacteriocin that produces could be included in a urogenital probiotic formula to prevent urogenital infections in women. The objective of this work was to determine the effects of different carbon and nitrogen sources on the growth and bacteriocin(More)
The use of probiotic microorganisms has been widely promoted in the last 20 years. Probiotics have applied to the gastrointestinal tract as capsules or as fermented milks. The characteristics of the strains proposed as probiotics have been published or patented after elaboration of the product. The first step in designing a probiotic product is to isolate(More)
Escherichia coli is one of the main causes of uncomplicated urinary tract infections and responsible of vaginal infections. Lactobacilli can inhibit this pathogen by the production of antimicrobial substances as organic acids, hydrogen peroxide and/or bacteriocins. The aim of this work was to study the effects of beneficial vaginal lactobacilli on E. coli(More)
PURPOSE to identify species of lactobacillus isolated from the vaginal contents of healthy and asymptomatic women, determining the most prevalent species and characterizing them phenotypically. METHODS lactobacillus have been isolated in selective milieu from samples of the vaginal contents of 135 women without complaints of vaginal secretion, and with(More)
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