Lactic acid bacteria protect human intestinal epithelial cells from Staphylococcus aureus and Pseudomonas aeruginosa infections.

Staphylococcus aureus and Pseudomonas aeruginosa are opportunistic pathogens that cause nosocomial and food-borne infections. They promote intestinal diseases. Gastrointestinal colonization by S.

Determining the role of a probiotic in the restoration of intestinal microbial balance by molecular and cultural techniques.

The human intestine has a vast variety of microorganisms, and their balance is dependent on several factors. Antibiotics affect microfloral balance and allow naturally opportunistic organisms to multiply. Azithromycin is the most widely used macrolide antibiotic, active against a wide number of pathogens including Pseudomonas aeruginosa and Staphylococcus aureus.

Effect of Lactobacillus species on Streptococcus mutans biofilm formation.

Streptococcus mutans is the primary pathogen responsible for initiating dental caries and decay. The presence of sucrose, stimulates S. mutans to produce insoluble glucans to form oral biofilm also known as dental plaque to initiate caries lesion.

Side effects of antibiotics on the intestinal microflora by PCR-DGGE.

Antibiotics are recommended for use in the treatment of infectious diseases, but the side effects have not been thoroughly investigated, especially on the intestinal tract. Fluoroquinolones, macrolides and β-lactams were tested the side effects on the intestinal microbflora of mice in this study. The similarity and sequence analysis of the dominant bands for different drug administration periods were carried out by denaturing gradient gel electrophoresis (DGGE) profiles.