Publications by authors named "Emanuele Pesenti"
Article Synopsis
- Radiocystis fernandoi produces microcystin, a harmful toxin that damages the liver in tropical fish, with varying effects depending on exposure duration.
- The study found that acute exposure led to decreased activity in antioxidant enzymes, while subchronic exposure showed some recovery in liver function despite increased DNA damage.
- Histopathological changes in the liver indicated dysfunction in response to both acute and subchronic microcystin exposure, with different responses to specific types of microcystins.
The cyanobacterium Radiocystis fernandoi has been frequently identified in cyanobacterial blooms in Brazil. Recently, R. fernandoi strain R28, which produces microcystin (MC)-RR and MC-YR, was isolated from the Furnas reservoir, Minas Gerais, Brazil.
View Article and Find Full Text PDFThe toxicity of titanium dioxide nanoparticles (TiO -NP) in the blood, liver, muscle, and brain of a Neotropical detritivorous fish, Prochilodus lineatus, was tested. Juvenile fish were exposed to 0, 1, 5, 10, and 50 mg L of TiO -NP for 48 hours (acute exposure) or 14 days (subchronic exposure) to evaluate changes in hematology, red blood cell (RBC) genotoxicity/mutagenicity, liver function (reactive oxygen species (ROS) production, antioxidant responses, detoxification, and histopathology), acetylcholinesterase (AChE) activity in muscles and brain, and Ti bioaccumulation. TiO -NP did not cause genetic damage to RBC, but acutely decreased white blood cells (WBC) and increased monocytes.
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