This study estimated the toxicity of the insecticides chlorpyrifos and phosmet to the stingless bees Scaptotrigona bipunctata and Tetragonisca fiebrigi. The results showed significant differences in susceptibility between ...

Acrocomia aculeata, popularly known as "bocaitiva", is a species used for nutritional purposes and for the treatment of various diseases, as it has, among other things, high levels of antioxidant compounds. This ...

Selenium (Se) is described as an essential micronutrient and participates in different biological functions, as the antioxidant defense systems maintenance and regulation. However, when in high concentrations, Se may cause ...

Selenium (Se) is described as an essential micronutrient and participates in different biological functions, as the antioxidant defense systems maintenance and regulation. However, when in high concentrations, Se may cause ...

Acute toxicity tests, exposing Girardia tigrina to potassium dichromate (K2Cr2O7), showed good reproducibility. The 95% confidence intervals among tests were 0.0262±0.0141 g for 48-h LC50 (N=6) and 0.0129±0.0078 g for 96-h ...

Analgesics tramadol and morphine were used in mice injected with Bothrops asper venom. Analgesics did not alter the acute toxicity of B. asper venom in mice. Precautionary (prophylactic) analgesia should be ...

Anacardium occidentale L. (Anacardiaceae), popularly known as cajueiro is a native plant to Brazil, and largely used in popular medicine to treat ulcers, hypertension and diarrhea. In the present study, acute, 30-day ...

Anacardium occidentale L. (Anacardiaceae), popularly known as cajueiro is a native plant to Brazil, and largely used in popular medicine to treat ulcers, hypertension and diarrhea. In the present study, acute, 30-day ...