Inhibition of bacterial adhesion and anti-biofilm effects of and biosurfactants against and .

Background And Objectives: Biosurfactants are amphiphilic surface-active agents that mainly produced by various microorganisms. In this study, the anti-biofilm and inhibition of bacterial adhesion activities of two bacterial biosurfactants were investigated.

Materials And Methods: After extraction and evaluation of and biosurfctants, inhibition of bacterial adhesion and anti-biofilm effects of them on and were determined.

Isolation of nontuberculous mycobacteria species from different water sources: a study of six hospitals in Tehran, Iran.

Purpose: Nontuberculous mycobacteria (NTM) are ubiquitous bacteria that are naturally resistant to disinfectants and antibiotics and can colonize systems for supplying drinking water. Therefore, this study aimed to evaluate the prevalence of NTM in the drinking water of six hospitals in Tehran, Iran.

Methods: Totally, 198 water samples were collected.

Investigation into antibacterial and wound healing properties of platelets lysate against Acinetobacter baumannii and Klebsiella pneumoniae burn wound infections.

Background And Aim: Treatment of burn wound infections has become a global challenge due to the spread of multidrug-resistant bacteria; therefore, the development of new treatment options for the mentioned infections is essential. Platelets have drawn much attention for this purpose because they are a safe and cost-effective source of different antimicrobial peptides and growth factors. The present study evaluated antibacterial effects and wound healing properties of Platelet-derived Biomaterial (PdB) against Acinetobacter baumannii and Klebsiella pneumoniae burn wound infections.

Smaller Copper Oxide Nanoparticles have More Biological Effects Versus Breast Cancer and Nosocomial Infections Bacteria.

Background And Objectives: Despite promising successes in developing new drugs and pharmaceutical biotechnology, infectious diseases and cancer are still the principal causes of mortality and morbidity globally. Therefore, finding effective ways to deal with these pathogens and cancers is critical. Metal nanoparticles are one of the new strategies to combat bacteria and cancers.

The effect of on cytotoxicity and apoptosis induced by Typhimurium in HT-29 cell culture.

Background And Objectives: Human epithelial cells have been widely used to study the interaction between intestinal cells and pathogens, . In this study, the effect of probiotic bacteria and its supernatant on the growth inhibition, cytotoxicity and induction of apoptosis caused by Typhimurium and its adhesion to HT-29 cells were investigated.

Materials And Methods: supernatant was used to obtain the minimum inhibitory concentration.

Virulence determinants and biofilm formation of isolated from hospitalized patients.

Introduction: are nosocomial bacteria that are responsible for outbreaks and severe infections in hospitalized patients globally. The major target of this study was the characterization of virulence determinants and biofilm formation of isolates from hospitalized patients.

Methods: In total, 100 were collected from three hospitals in Tehran, Iran, 2017-2018.

Mycobacterium avium paratuberculosis and Mycobacterium avium complex and related subspecies as causative agents of zoonotic and occupational diseases.

Mycobacterium avium complex (MAC) and Mycobacterium avium paratuberculosis (MAP) cause zoonotic infections transmitted by birds and livestock herds. These pathogens have remained as serious economic and health threats in most areas of the world. As zoonotic diseases, the risk of development of occupational disease and even death outcome necessitate implementation of control strategies to prevent its spread.

Prevalence of Clinically Isolated Metallo-beta-lactamase-producing , Coding Genes, and Possible Risk Factors in Iran.

Background & Objective: The spread of carbapenem-resistant is a global concern. Metallo-beta-lactamase (MBL) enzymes cause extensive drug resistance among Gram-negative bacteria. The current study aimed at determining the prevalence of MBL-producing in Iran.