biofilm

Objective. To determine the minimum inhibitory concentrations of thiamphenicol and thiamphenicol glycinate acetylcysteinate against clinically significant microorganisms and determine their efficacy against microbial biofilms. Materials and Methods. This study included 48 clinical strains isolated from the sputum of patients with respiratory tract infections (16 S. pneumoniae, K. pneumoniae and S. aureus strains). Antimicrobial susceptibility testing was performed using broth microdilution method. Biofilm formation culturing with antibiotics, N-acetylcysteine and their combinations was assessed in Mueller-Hinton broth and brain heart broth in 96-well plates.

The ability to form biofilms in lung tissue destruction cavities has been described for both the causative agent of tuberculosis (Mycobacterium tuberculosis) and for non-tuberculous mycobacteria. This process is associated with the chronic infection. …

Objective. To study pathogenic factors (adhesion and biofilm formation) in F. solani isolated from skin of patients Materials and methods. A total of 86 strains of F. solani isolated from the skin of patients with a diagnosis of L30.3 “Infectious dermatitis” were selected. The reference strain F. solani F-819 was used for quality control. Samples were collected using a sterile cotton swab from an area of 5 × 5 cm.

Objective. To evaluate effect of «Haemoblock»TM preparation on in vitro bacterial colonization. Materials and Methods. Activity of «Haemoblock»ТМ product on the growth and colonization of S. aureus АТСС 25923, S. epidermidis ATCC 28922, E. coli АТСС 25922, P. aeruginosa АТСС 27853 cells in the suspension and on the surface of monofilament macroporous polyester mesh was evaluated. Results. This product at concentration of 0.062% and above inhibited bacterial growth and reduced biofilm mass and bacterial cell viability.

Objective. To study the colonization activity of clinical strains of uropathogenic Escherichia coli (UPEC) against various types of urological catheters. Materials and Methods. Biofilms of E. coli (n = 6) were formed for 24 h according to the standard method. Urological catheters made from latex, polyvinylchloride, silicon and silver-coated silicon were used as a surface for bacterial colonization. The surface roughness and hydrophobicity, biofilm mass, number of colony forming units in biofilm, and frequency of conjugation were assessed.

The article presents data on susceptibility to antiseptic preparations in antibiotic-resistant S. aureus and P. aeruginosa strains isolated from burn wounds, which were tested in single-species and double-species biofilms with varying degrees …

Objective. To evaluate the biofilm formation by isolates of Candida spp. obtained from blood culture in patients with or without hematological malignancies. Materials and Methods. Biofilm formation by Candida spp. was determined by the method of Pierce C. and Tumbarello M. Isolates with optical density (OD) >0.1 were considered as biofilm-forming. Results. A total of 109 isolates of Candida spp. (C. albicans [n=22], C. parapsilosis [n=22], C. tropicalis [n=22], C.

his review summarizes the most recent data on the biological characteristics of Helicobacter pylori (morphological, cultural, biochemical). H. pylori pathogenicity factors promoting colonization, adhesion, biofilm formation, aggression, and …

This study was performed to investigate activity of chlorhexidine-based antiseptic preparation «Dezin» against the following pathogens causing nosocomial respiratory tract infections (RTI) and urinary tract infections (UTI): Klebsiella pneumoniae …

This review presents a modern view on persister microbial cells, a specific form of latent cells, which is formed in bacterial and fungal populations in stationary phase of growth. Persister cells are found in planktonic populations as well as …