The in vitro activity (minimal inhibitory concentration and minimal lethal concentration) of 13 beta-lactam antibiotics against two laboratory strains of Chlamydia trachomatis was compared. No useful activity could be detected.

the water extract of trigonella foenum graecum stem and leaves was tested for lethal activity against hymenolepis nana, syphacia obvelata, and moniezia expansa. the plant extract demonstrated good anthelmintic activity in vitro which is directly related to the concentration of the extract used. the extract also prevents the formation of ascaris larvae from the eggs of ascaris lumbrico- ides (hu...

toxic effects of malathion and endosulfan to fertile chicken eggs were determined. in-jection of 1.25, 2.5, 5.0 and 10.0 mg/egg of malathion into yolk sac of fertile eggs prior to incubation caused mortality of 10.0, 30.0, 83.33 and 93.33% respectively. similar trend was observed with injection of endosulfan doses. malathion and endosulfan at 1.25 mg/egg caused no pronounced ld50 increase in mo...

Susceptibility to the lethal toxicity of endotoxin in mice pretreated with emulsified trehalose-6,6'-dimycolate was enhanced by (i) increasing the oil concentration while keeping the Tween concentration constant; and (ii) decreasing the Tween concentration, while keeping the oil concentration constant.

background and objectives : due to the extensive use of antibiotics, the spread of drug-resistant bacteria is one of the most worrisome threats to public health. one strategy that can be used to overcome potential shortcomings might be the inactivation of these organisms by photodynamic therapy. in this study, we have investigated whether drug-resistant wound-associated organisms (staphylococcu...

eucalyptus camaldulensis dehnh and callistemon viminalis (gaertn) essential oils were tested against adults (1-3 day old) of tribolium confusum jacquelin du val. in 280 ml glass vials either with or devoid of wheat grains. the oils were also examined for fumigant toxicity against, 5 and 20-day-old larvae. the essential oils were obtained through hydrodistillation, applying a modified clevenger ...

Fire combustion products contain a broad range of chemicals, which have a multitude of possible toxic interactions in humans. The aim of this study was to evaluate the cytotoxicity of selected substances commonly produced during fire combustion. A range of human cell lines and cultures including: skin fibroblasts, HepG2 (liver derived), and A549 (lung derived cells) were used to represent diffe...

Trichomoniasis is one of the most common parasitic sexually transmitted diseases in the world. Metronidazole was known as the most effective drug for human trichomoniasis., however, drug resistance and toxicity appeared. This study was designed to investigate the in vitro inhibitory activity of wheat germ agglutinin and Nigella sativa aqueous extract on the growth and motility of Trichomonas va...

The Caspian trout is an endangered and quite vulnerable fish, considered for a natural protection program in the southern area of the Caspian Sea. Copper oxide nanoparticles (CuO-NPs) are toxic substances, which induce oxidative stress, not to mention other pathophysiological states. The toxicity of nanoparticles on fish needs more characterization for short- and long-term effects.  Thus, the p...