| genotoxic risk assessment of drinking water consumed in the city of tehran, iran. | two hundred liters of drinking water of the city of tehran were collected as tap water in a glass container and passed through a xad-2 resin column at a flow rate of 60-100 ml/minute. the adsorbed materials were eluted with acetone, dried and dissolved in 2 ml dimethylsulfoxide (dmso). doses up to 10 microliters did not elevate sister chromatid exchanges (sce) in cho fibroblasts, while 20 microliters caused a significant increase in sce. however, this dose did not show any chromosomal aberration ... | 1995 | 7726647 |
| antimicrobial drug resistance and resistance factor transfer among clinical isolates of salmonellae in iran. | 508 salmonella strains isolated during 1983-1986 in tehran, iran from cases of diarrhoea in children less than 5 were tested for sensitivity to 10 antimicrobial drugs and their ability to transfer the resistance determinants. salmonella typhimurium and s. havana were most common (45.7% and 30.9%, respectively) followed by s. typhi (2.9%) and s. larochelle (2.4%). the antimicrobial agents used were chloramphenicol (c), gentamicin (g), tetracycline (t), ampicillin (a), cephalothin (cf), trimethopr ... | 1990 | 2356442 |