نتایج جستجو برای: bacteria and pathogens
تعداد نتایج: 16857877 فیلتر نتایج به سال:
backgrounds: neutropenia can be associated with life-threatening infections. gram negative and staphylococcal infections are the most common pathogens. the spectrum of bacterial isolates has changed considerably over the past four decades. the objective of the present study was to evaluate the pattern of bacterial and fungal infections in neutropenic pediatric patients. methods: a non-randomi...
71 samples of milk and dairy products were collected from 18 cities throughout Iran. 93 strains of lactic acid bacteria (LAB) were isolated and assayed against four opportunistic patho gens including E. coli, proteus and klebsiella as gram-negative and S. aureus as a gram-positive organism. All indicators (organisms) were hospital strains. Among isolated bacteria, lactobacilli (37 isolates)...
Intracellular pathogens reside in specialised compartments within the host cells restricting access of antibiotics. Insufficient intracellular delivery antibiotics along with several other resistance mechanisms weaken efficacy current therapies. An alternative to antibiotic therapy could be bacteriophage (phage) therapy. Although phage has been practice for a century against various bacterial i...
71 samples of milk and dairy products were collected from 18 cities throughout iran. 93 strains of lactic acid bacteria (lab) were isolated and assayed against four opportunistic patho gens including e. coli, proteus and klebsiella as gram-negative and s. aureus as a gram-positive organism. all indicators (organisms) were hospital strains. among isolated bacteria, lactobacilli (37 isolates) had...
antibiotics are the best known products of actinomycete. over 5,000 antibiotics have been identified from the cultures of gram positive and gram-negative organisms, and filamentous fungi, but only about 100 antibiotics have commercially been used to treat human, animal and plant diseases. the genus, streptomycete, is responsible for the formation of more than 60% of known antibiotics. bacterial...
Background: Lactic acid bacteria interfere to improve the taste of food products and and to prevent the growth of food spoilage organisms and pathogens with producing antimicrobial substances called bacteriocin. To study the antagonistic effect of isolated Lactobacillus from soil where native yogurt is processed against pathogenic bacteria is the purpose of this study. Methods: In this cross-s...
Background: Many studies have shown that periodontal pathogens are emerging as a risk factor for preterm delivery and low birth weight, but there are few studies about the relationship between other oral bacteria and pregnancy outcomes. The aim of the present study was to determine the relationship between salivary bacteria and pregnancy outcomes. Methods: This cohort study was performed on 30...
Introduction: Although nowadays the risk of transmission of bacterial pathogens through blood transfusion has been decreased, but there is the possibility of transmission of these factors by injection of these kind of products. The purpose of this survey was determination of contamination of platelet products with aerobic bacteria in Isfahan Blood Transfusion Center. Methods: In the spring a...
Regarding increasing rate of drug resistance among microbial pathogens, a global search to find new antimicrobial agents from natural compounds with fewer side effects has been considered by many researchers worldwide. Bioactive compounds with good antimicrobial activity have been isolated from different algae and cyanobacteria. The current study was performed to determine antimicrobial potenti...
We report two Australian patients with soft tissue infections due to Photorhabdus species. Recognized as important insect pathogens, Photorhabdus spp. are bioluminescent gram-negative bacilli. Bacteria belonging to the genus are emerging as a cause of both localized soft tissue and disseminated infections in humans in the United States and Australia. The source of infection in humans remains un...
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