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...

background and objectives: there is a profound inclination among people toward consumption of herbs and herbal products. some of these products are harmful while health-promoting potentials of some others should be discovered. in the present study the antibacterial, antioxidant, acute and subchronic and cancer cell toxicity of methanolic and aqueous extracts of rosa damascena mill. was studied....

introduction: antibiotics as a  type of pharmaceutical compounds are widely used in modern medicine and veterinary industries. they enter the environment in different ways, including agricultural runoff, direct discharge of urban wastewater treatment or human waste, direct disposal of medical, veterinary industrial waste and etc. antibiotics have been able to influence the microbial population....