background: leukemia inhibitor factor (lif) is a very important pleiotropic cytokine which belongs to interleukin-6 (il-6) family. lif exerts multiple effects on different types of cells and tissues with numerous regulatory effects in vivo and in vitro. it is a lymphoid factor, which performs a number of activities including cholinergic neuron differentia­tion, control of stem cell pluripotency...

conclusions our findings show that lactobacillus strains with human origin had a mild inhibitory activity against the diarrheagenic e. coli, and these strains may be useful as probiotic candidates in prevention of intestinal infections caused by diarrheagenic e. coli. results a total of 20 lactobacillus isolates were identified from stool samples. lactobacillus fermentum was the most frequently...

background: balantidium coli infects humans, primates and pigs, causing serious diarrhea and dysentery. little information on the prevalence of b. coli in primates is available in china. this investigation was conducted to determine the prevalence of b. coli infection in bred rhesus monkeys in guangxi zhuang nationality autono-mous region (gznar), southern china. methods: a total of 120 fecal s...

a variety of probiotic bacteria have been tested to control animal and foodborne pathogenic bacteria in livestock. the mechanism of inhibition of pathogenic bacteria for several of those probiotic microorganisms is mediated by the production of bacteriocins. colicins are probably the group of bacteriocins that have been most thoroughly characterized. colicins are antimicrobial proteins produced...

background: there is a growing concern on the impact of the presence of extended-spectrum β-lactamase (esbl) producing escherichia coli isolated from animals on public health. objectives: the aim of this study was to investigate the presence of three classes of esbl genes in e. coli isolates from sheep and broilers at a slaughter in urmia region, iran. methods: a total of 111 e. coli isolates w...

CoQ10 and lycopene are isoprenoid compounds with nutraceutical and pharmaceutical benefits. In this study, the effect of concomitant lycopene biosynthesis on CoQ10 accumulation in transformed Escherichia coli DH5α was studied. A lycopene production pathway including geranylgeranyl diphosphate synthase (crtE), phytoene synthase (crtB), and phytoene desaturase (crtI) from Erwinia herbicola was co...

conclusions ctx-m was the most prevalent esbl genotype in uropathogenic e. coli (upec) isolated from uti. in addition, a high frequency of qnr genes among esbl-producing e. coli was identified in this study. in order to avoid treatment failures, we recommend using phenotypic and molecular methods to diagnose these enzymes and qnr genes. results the highest sensitivity was seen to imipenem (96.7...