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...

conclusion attending radiologists could diagnose acute appendicitis accurately on ne-ldct. performance of senior residents on ne-ldct is better than junior residents and comparable to attending radiologists. results diagnostic performances for acute appendicitis were not statistically different for attending radiologists at both examinations. better performance was noted on the ce-sdct with a b...

health care workers (hcw) are at high risk of occupational exposure from blood-borne pathogens. the most important pathogens that can be transmitted to hcw are hiv with prevalence of 2.24 per 100000, hbv with prevalence of 2.3%, and hcv with prevalence of 0.2% in iran. most of this occupational transmission can be prevented through standard precautions reducing exposure. these precautions, howe...

A case is described of a woman with acute hepatitis C infection whose partner had chronic hepatitis C infection and where heterosexual contact was the only major risk factor. Infection of both partners was confirmed serologically and by the finding of virus RNA by reverse transcription and polymerase chain reaction amplification. Nucleotide sequence analysis of the NS5 region (RNA polymerase) w...

OBJECTIVE To review the literature on acute toxic exposure in children, excluding envenomations. SOURCES OF DATA MEDLINE review (emphasis on the past decade), including the American Academy of Clinical Toxicology and the European Association of Poison Centres and Clinical Toxicologists position statements and position papers (peer-reviewed information based on scientific evidence and broad co...

Synaptic transmission at the vocal synapse, the laryngeal neuromuscular junction, of Xenopus /aevk has been shown to be regulated by long-term changes in circulating estrogen. In females, high levels of circulating estrogen also accompany gonadotropin-induced ovulation and oviposition and the switch from sexually unreceptive to receptive states, including changes in vocal behaviors (ticking to ...

Toluene (methylbenzene) is a colourless liquid used as a solvent in the manufacture of synthetic rubber paint and lacquer as well as trinitrotoluene (Fairhall, 1957). Chronic or acute exposure to high concentrations is known to be toxic and to cause renal and hepatocellular damage (O'Brien, Yeoman, and Hobby, 1971). This report deals with severe myoglobinuria and acute renal failure necessitati...

Chlorine is a yellowish-green gas with a pungent, irritating odor. It is intermediate water-soluble and can cause acute damage to both upper and lower respiratory tracts. Its toxicity is thought to be mediated by the generation of hydrogen chloride upon contact with moist mucous membrane and by the formation of free radicals at the cellular level. Toxic exposures to chlorine were first reported...

background: sulfur mustard (sm) has acute and chronic effects on skin and mucosal surfaces. the aim of the study was to evaluate the frequency of esophagitis in a historical cohort of veterans who had been exposed to sm in iran-iraq war nearly 25 years ago.   methods : one hundred two veterans with dyspepsia and/or heartburn underwent esophago-gastro-duodenoscopy. of them, 52 cases had been exp...