background: in current study, chemical composition and antibacterial activity of leaves and flowers essential oils of origanum vulgare ssp. gracile against four food-borne pathogens including  escherichia coli, listeria monocytogenes, salmonella thyphimurium and staphylococcus aureus were examined. methods: the different organs (leaves and flowers) of o. vulgare ssp. gracile were harvested at f...

introduction: the plethora of studies indicated that there is a cross talk relationship between harmaline and serotonergic (5-ht) system on cognitive and non-cognitive behaviors. thus, the purpose of this study is to assess the effects of hippocampal 5-ht4 receptor on memory acquisition deficit induced by harmaline.  methods: harmaline was injected peritoneally, while 5-ht4 receptor agonist (rs...

background: to assess the distribution and resistance of the pathogens responsible for septic arthritis and osteomyelitis over a 10 years period in children admitted to children's medical center hospital, tehran, iran. methods: microbiologic and clinical presentation reports from 145 cases of septic arthritis and osteomyelitis from march 1995 to february 2005 were retrospectively reviewed. resu...

we report 11 year old male child, a case of acquired aplastic anemia as a complication of disseminated tuberculosis with acute onset, rapid downhill course and refractory to both antitubercular drugs as well as immunosuppressive drugs.

objective: optimal dentin bonding is not always obtained in clinical practice due to func-tional forces. these forces may provide stresses throughout the tooth and restorative sys-tem, which in turn may affect the adhesive bond. this experimental study evaluated the effect of load cycling on bond strength of self-etch systems. materials and methods: one third of the coronal portions of 48 intac...