a 19-year-old woman was referred to the emergency surgery department with severe abdominal pain, icterus, and anemia. the patient’s clinical and paraclinical findings in addition to her occupational and social history, convinced us to assay blood lead level (bll), which was 41/5 µg/dl. therefore toxicology consult was performed to treat lead toxicity. recheck of the bll showed the level as 53/7...

background: glybenclamide and metformin are two of the most common oral hypoglycemic drugs which are often used in treatment of type ii diabetes mellitus. toxicity due to these drugs may occur intentionally, accidentally, or even at the normal dosage because of the progression of such internal diseases as renal dysfunction. methods: in this case series study, 59 patients poisoned with oral hypo...

objective(s): titanium dioxide (tio2) nanoparticles (nps) are widely used in commercial food additives and cosmetics worldwide. uptake of these nanoparticulate into humans by different routes and may exhibit potential side effects, lags behind the rapid development of nanotechnology. thus, the present study designed to evaluate the toxic effect of mixed rutile and anatase tio2 nps on serum bioc...

The REACH Regulation requires information on acute oral toxicity for substances produced or imported in quantities greater than one ton per year. When registering, animal testing should be used as last resort. The standard acute oral toxicity test requires use of animals. Therefore, the European Chemicals Agency examined whether alternative ways exist to generate information on acute oral toxic...

Background: Ferula species have shown wide range of pharmacological properties but there is no study on oral safety profile of Ferula persica due to standard toxicology guidelines. Objective: This study aimed to evaluate the acute and subchronic oral toxicity of the alcoholic extract of the aerial parts of Ferula persica to provide its safe dose for long term oral administrations as a possible...

The purposes of acute toxicity testing are to obtain information on the biologic activity of a chemical and gain insight into its mechanism of action. The information on acute systemic toxicity generated by the test is used in hazard identification and risk management in the context of production, handling, and use of chemicals. The LD50 value, defined as the statistically derived dose that, wh...

Toxicity assessment of high fructose corn syrup-55: a repeated dose oral toxicity study in uterus and ovaries female rats

The beneficial effects of fluoride on human oral health are well studied. There are numerous studies demonstrating that a small amount of fluoride delivered to the oral cavity decreases the prevalence of dental decay and results in stronger teeth and bones. However, ingestion of fluoride more than the recommended limit leads to toxicity and adverse effects. In order to update our understanding ...

objective(s): carbon nanotubes have unique mechanical, electrical, and thermal properties, with potential different applications in nanomedicine, electronics, and other industries. these new applications of carbon nanotubes in different industries lead to the increased exposure risk of nanomaterials to human. up to now, all aspects of carbon nanotubes toxicity are not completely clear following...