نتایج جستجو برای: bacteria and pathogens
تعداد نتایج: 16857877 فیلتر نتایج به سال:
Background: Nowadays, it is needed to explore new routes to treat infectious bacterial pathogens due to prevalence of antibiotic-resistant bacteria. Antimicrobial photothermal therapy (PTT), as a new strategy, eradicates pathogenic bacteria.Objective: In this study, the antimicrobial effects of a carbon nanoparticles-polypyrrole nanocomposite (C-PPy) upon laser irradiation were investigat...
BACKGROUND The aim of the project is to retrospectively study the changes in bacterial pathogens in acute neonatal bacterial conjunctivitis from 2002 to 2016 in Southern China. The results may provide the guidance for drug choice for acute neonatal bacterial conjunctivitis. METHODS Secretion specimens for bacterial culture were taken from 485 cases with clinically diagnosed acute bacterial ne...
Background and Objectives: Bioprotective starters, especially lactic acid bacteria, are used in fermentation and biological preservation of the meat products and considered as appropriate substitutes for the chemical preservatives. The aim of this study was to use Lactobacillus plantarum and Pediococcus acidilactici as bioprotective cultures and probiotics for the growth control of important fo...
Background and Objective: Antibiotic resistance is the ability of microbes to survive antibiotic exposure with standard doses. Regular updating of antibiotics is one solution to overcome antibiotic resistance. One source with potential new antibiotics is moonmilk from caves because it contains various bacteria proven to have antibacterial activity. The objective of the present study is to explo...
recently, real-time pcr in combination with pma has successfully been applied to discriminate between live escherichia coli o157:h7 and dead bacteria killed by cumin, clove, oregano and cinnamon eos. in this study, initial experiments were performed in order to elucidate the minimum bactericidal concentration of zataria multiflora eo on e. coli o157:h7, salmonella enterica and listeria monocyto...
Background: Application of nanoparticles in the removal of pathogenic bacteria is very important. The use of these materials can be appropriate for controlling pathogens and food-borne diseases. The purpose of this study was to synthesize magnesium oxide nanoparticles and investigate its antibacterial effect on several bacteria causing food poisoning. Materials and Methods: Oxide magnesium nan...
Objective: Lactic acid bacteria (LAB) produce various substances that exhibit antagonistic activity against other bacteria. Detection of antimicrobial substance produced by lactic acid bacteria against the water borne pathogens is the objective of this work. Materials: The bacteriocin producing probiotic strain Lactobacillus plantarum was isolated from a grass silage samples and identified base...
conclusion determination of colonized bacteria in oropharynx of healthy children and relationship between them can be helpful to find the ways to interfere with their colonization and prevention of diseases due to them. materials and methods the colonized bacteria in oropharynx of 296 children between 2-6 years old from 7 day care centers of tehran were isolated and determined by specific diagn...
Background and Aims: Urinary tract infections are one of the most common human infections seen in all age groups and both sexes. Inappropriate use of antibiotics to treat urinary tract infection causes the resistance of the pathogens to the drug. The present study aimed to determine the frequency of gram-negative and gram-positive bacteria and antibiotic resistance patterns in patients with uri...
BACKGROUND Respiratory tract infection is a major cause of acute exacerbation of bronchial asthma (AEBA). Although recent findings suggest that common bacteria are causally associated with AEBA, a comprehensive epidemiologic analysis of infectious pathogens including common/atypical bacteria and viruses in AEBA has not been performed. Accordingly, we attempted to detect pathogens during AEBA by...
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