a wide range of medicinal plant parts that possess varied medicinal properties are used for extracts as raw drugs. in this study, the ethanolic extract obtained from aerial parts of fennel (foeniculum vulgare mill.) seedlings was evaluated in vitro to examine their antimicrobial activity against four gram-negative and three gram-positive bacteria and two fungi. aerial parts of one-month-old see...

conclusions the results of the present study suggest that the presence of fusobacterium species in periodontal pockets is an important risk factor for halitosis. results in total, 26% (n = 13) and 8% (n = 4) samples were positive for fusobacterium species in the halitosis and control groups, respectively, with f. nucleatum present in the greatest proportion in both groups. halitophobia was sign...

[no abstract available]

background: the entrance of toxic compounds into wastewater treatment plants (wwtps) can induce disorder in their biological units. therefore, it is necessary to determine the sources of toxic wastewaters. in this study, the toxicity of the wastewater of 3 metal plating industries was assessed using sequencing batch reactor (sbr) bacteria. methods: to obtain the 1-1000 ml/l concentrations, the ...

aim :  the aim of this study was to investigate the in vitro inhibitory effect of probiotic e.coli nissle 1917 (ecn) strain against pathogenic bacteria isolated from patients with diarrhea. background : probiotics are viable microorganisms that are shown to have beneficial effects on human health. ecn is a typical example of probiotics; however, there are few reports of it being administered fo...

background some human diseases such as tuberculosis, legionnaires' disease and different forms of bacterial pneumonia, coccidioidomycosis, influenza, measles, and gastrointestinal illnesses are the result of exposure to bioaerosols. in addition, they are associated with some noninfectious airway diseases, such as allergies and asthma. objectives in the education hospitals of hamedan university ...

the nosocomial infections, caused by multi-drug resistant bacteria, are the most important cause of mortality throughout the world. one important mechanism against beta-lactam antibiotics is the production of beta-lactamases. enterobacteriaceae and non-fermentative bacteria, like pseudomonas aeruginosa and acinetobacter baumannnii may produce these enzymes. currently, there is no vaccine to pre...

conclusions these human-derived lab and bifidobacteria exhibited different mechanisms involved in pathogenic inhibition. therefore a combination of these probiotic strains could be a great promise and possibility for the development of probiotic products to effectively prevent and control food-borne infection in humans. background food-borne pathogens are among the most significant problems in ...

conclusions with regards to the continuous changing in causative microorganisms isolated from patients with uti and antibiotic sensitivity patterns, it is recommended that bacterial sensitivity patterns in populations are determined in any region annually. . objectives this study aimed to detect and also compare the frequency and drug resistance pattern of gram negative bacteria isolated from p...

background one of the most common nasocomial bacteria is methicillin resistant staphylococcus aureus (mrsa). today, herbal extracts like zataria multiflora from the lamiaceae family are increasingly used. objectives in this study, the antibacterial effect of z. multiflora on 75 strains of was evaluated. materials and methods the strains of staphylococcus aureus were examined for isolation of st...