نتایج جستجو برای: pathogenic viruses and bacteria

تعداد نتایج: 16867564  

2015
Korneliusz Golebski Danielle van Egmond Esther de Groot Jeroen den Dunnen Wytske Fokkens Cornelis van Drunen

Background Nasal epithelial cells are the first line of defence against invading microbes. In everyday life, we are constantly exposed to variety of bacteria and viruses, but not every exposure leads to a development of pro-inflammatory responses of nasal epithelium. Although triggering of an individual PRR is known to induce cell responses, it has become clear that the ultimate profile of cyto...

Journal: :iranian journal of basic medical sciences 0
atiyeh naderi division of microbiology, department of biology, faculty of sciences, alzahra university, tehran, iran roha kasra kermanshahi division of microbiology, department of biology, faculty of sciences, alzahra university, tehran, iran sara gharavi division of microbiology, department of biology, faculty of sciences, alzahra university, tehran, iran abbas ali imani fooladi applied microbiology research center, baqiyatallah university of medical sciences, tehran, iran meghdad abdollahpour alitappeh department of pharmaceutical biotechnology, pasture institute, tehran, iran parvaneh saffarian department of bacteriology, faculty of medical sciences, tarbiat modares university, tehran, iran

objective(s):urinary tract infection (uti) caused by bacteria is one of the most frequent infections in human population. inappropriate use of antibiotics, often leads to appearance of drug resistance in bacteria. however, use of probiotic bacteria has been suggested as a partial replacement. this study was aimed to assess the antagonistic effects of lactobacillus standard strains against bacte...

The main objective of this study is removal of pathogenic bacteria using electrochemical process. The bactericidal effects of electrochemical system containing steel mesh electrode were evaluated from contaminated water with E. coli, Pseudomonas aeroginosa, Staphylococcus aureous and Streptococcus fecalis at various concentrations. Effect of current density, supporting electrolyte and pathogeni...

Journal: :iranian journal of microbiology 0
ameneh elikaei department of microbiology, faculty of biological science, alzahra university, tehran, iran seyed masoud hosseini seyed masoud hosseini ph.d, department of microbiology, faculty of biological science & technologies, shahid beheshti university, tehran, iran zohreh sharifi blood transfusion research center, high institute for research and education in transfusion medicine, tehran, iran

background and objectives: pathogen reduction technologies are among methods to eliminate transfusion transmitted infections. mirasol method using riboflavin in combination with ultraviolet rays is one of them. the aims of this study were to investigate the effectiveness of mirasol method to inactivate some model pathogens as well as examination of the sensitivity of plasma proteins after treat...

Atefeh Jaleilzadeh Mahdi Toosi Marzyeh Ghaesari Mohammad Safari Zahra Soleimani,

Controlling the microbiological quality of water is important for its uses. Microbiological requirements of drinking water ensure the absence of coliforms, but may indicate the potential presence of other potentially pathogenic microorganisms and viruses of fecal origin. A total of 36 water samples, representing the drinking water of the whole city of Aradan, Semnan, Iran, were randomly collect...

ژورنال: زیست شناسی ایران 2020

Viruses are dominant entities in the biosphere and parasitize all cellular life forms. The relative abundances of different classes of viruses are dramatically different between prokaryotes and eukaryotes. In marine, soil and animal-associated environments, virus particles consistently outnumber cells by one to two orders of magnitude. It is estimated that 10 quintillion (1030) viral particles ...

Journal: :progress in biological sciences 2015
ensieh salehghamari mona soleimani vida tafacori

screening of microorganisms for the production of novel antibiotics has been intensivelypursued for many years by scientists. actinomycetes have the capability to synthesize manydifferent antibiotics. a total of 69 actinomycete isolates were recovered from soil samplescollected from alborz province. selected colonies (rough, chalky) of actinomycetes werepurified. all screened isolates were iden...

Journal: :avicenna journal of clinical microbiology and infection 0
gita eslami department of microbiology, faculty of medicine, shahid beheshti university, tehran, ir iran raheleh karimiravesh department of microbiology, faculty of medicine, shahid beheshti university, tehran, ir iran; department of microbiology, faculty of medicine, shahid beheshti university, tehran, ir iran. tel: +98-939-2206484 sudabeh taheri department of microbiology, faculty of medicine, shahid beheshti university, tehran, ir iran eznollah azargashb department of community medicine, faculty of medicine, shahid beheshti university, tehran, ir iran

background considering the high prevalence of bacterial vaginosis and its association with urinary tract infection in women and treatment of gynecologic problems occur when a high recurrence of bacterial vaginosis is often treated with antibiotics. objectives the purpose of this study was to investigate the inhibitory effect of lactobacillus reuteri on pathogenic bacteria isolated from women wi...

فخیم, حامد, خداویسی, صادق, اولیا, سونیا, بدلی, حمید, محمد داوودی, مهرناز , هاشمی, بهنام ,

Probiotics are considered as living drugs that can reduce antibiotic consumption and increase human health development. Meanwhile, probiotics can adjust intestinal microflora, inhibiting the growth of pathogenic bacteria, antimicrobial agents, stimulate the immune system, balance of bile acids and ultimately inhibit the growth and reduce the number of harmful bacteria in the digestive system. ...

Journal: :Journal of Experimental Biology and Agricultural Sciences 2022

Plant diseases caused by numerous pathogens such as bacteria, viruses, and fungi are responsible for substantial economic losses in the agricultural industry worldwide. Specific, sensitive, efficient diagnostic tools have been developed worldwide to mitigate prevent pathogenic threat. The revolutionized from classical methods more advanced molecular approaches enzyme-linked immunosorbent assay ...

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