background: the aim of this study was to compare the antibacterial efficacy of endemic satureja khuzistanica jamzad (skj) essential oil as root canal irrigation versus 2.5% sodium hypochlorite and 2% chlorhexidine gluconate.     methods: in current in vitro experimental study, fifty four single-rooted teeth were randomly divided into 6 groups of 9 samples: 2.5% sodium hypochlorite (naocl), 2% c...

background compounds present in green tea have proved to inhibit the growth and activity of bacteria associated with infections. objectives to assess the effects of green tea leaves extract in presence of propylene glycol on the aerobic mouth bacteria load. materials and methods saliva of 25 volunteer girl students aging 20-25 years were selected and evaluated by a mouthwash sample containing 1...

tuberculous meningitis (tbm) and acute bacterial meningitis (abm) cause substantial mortality and morbidity in both children and adults. identification of poor prognostic factors at patient's admission could prepare physicians for more aggressive monitoring of patients with meningitis. the objective of this study was to determine the predictive value of neurological features to differentiate ab...

long-term use of indwelling medical catheters has often been hindered by catheter-associated nosocomial infections. in this study the effectiveness of silver coating of polystyrene and polyethylene polymers was investigated. polymer pieces of 2 cm2 each were coated with a thin layer of silver using electroless plating technique. silver-coated polymers were challenged with cultures of four diffe...

objective: adhesion of lactobacillus acidophilus (l. acidophilus) to dental porcelain surface may lead to gingival inflammation and secondary caries. surface roughness is among the factors affecting this adhesion. the purpose of this study was to evaluate the effects of four different surface treatment methods on adhesion of l. acidophilus to dental porcelain.   methods: sixty specimens (3x10mm...

background and objectives: bacterial vaginosis (bv) is a common disorder which happens when the balance of bacterial flora in vagina is disrupted by a shift in concentration of lactobacillus and pathogenic bacteria. it has significant sequelae including increased rates of late miscarriage when diagnosed in early pregnancy, premature rupture of the membranes, endometritis, preterm labour and del...

background: resistance to anti-tuberculosis (tb) drugs is a global problem. previous studies showed that the prevalence of primary mdr-tb is higher and has been increasing. the purpose of this study was to determine the primary drug resistance in strains isolated from patients with smear-positive of the new cases to anti-tb drugs. methods: in this cross-sectional study, 266 smear positive pulmo...

background : prosthetic valve endocarditis (pve) is an important cause of morbidity and mortality associated with heart valve replacement surgery. the aim of the present study was to describe the early outcome of treatment in patients with pve in a single center. methods : the data of all the episodes of pve registered at our institution between 2002 and 2007 were collected and analyzed retrosp...

conclusions although carbohydrate fermentation patterns specified these three isolates as b. infantis, b. bifidum, and b. longum, the molecular results did not confirm b. longum, which is still also controversial in the literature. overall, our results demonstrated that kashk-e zard is a rich potential source of probiotic bacteria and further investigations should be undertaken. results twelve ...

hexachlorocyclohexane, an organochlorine insecticide has been used in agriculture and public health programmes since a very long time. it is very resistant to degradation and thus accumulates in the environment for long time. a microbial consortium was developed in our laboratory which could degrade hexachlorocyclohexane very efficiently in water. a study was carried out to understand the biode...