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https://www.selleckchem.com/products/3-amino-9-ethylcarbazole.html Hexabromocyclododecane (HBCD) is a ubiquitous environmental contaminant of current concern despite its global ban in 2013 due to its characteristics as a persistent organic pollutant. While the toxicity of HBDC in vertebrates has been extensively studied, the specific molecular mechanisms underlying its toxicity in fish are not fully understood to date. Therefore, the aim of this work was to determine the in vitro cytotoxicity of HBCD in the fathead minnow (Pimephales promelas) using liver explants, and to investigate the molecular mechanisms underlying these effects. Explants were incubated with nine different concentrations of HBCD (0.00032, 0.0016, 0.008, 0.04, 0.2, 1, 5, 25 and 125 mg HBCD/L) for 6 and 24 h, and cytotoxicity was tested by using the Lactate Dehydrogenase (LDH) assay. The expression of genes with a key role in the regulation of apoptosis, oxidative stress, cryoprotective responses to reactive oxygen species (ROS), and xenobiotic metabolism was also measured in liver explants after exposure st all HBCD concentrations tested after 6 h but remained unaltered after 24 h. Overall, we demonstrated that the cytotoxic effect of HBCD in fathead minnow liver explant was not proportional to its concentration in the culture media. Cytotoxicity was highly dynamic and did not follow a typical concentration-response pattern, complicating its toxicological characterization.Antimicrobial resistance is a worldwide issue whereby a more prudent use of medications is needed, especially for those antimicrobials (AM) classified as 'highest priority critically important antimicrobials' (HPCIAs) which are likely contributors to the development of resistance. So far, data on antimicrobial use (AMU) in EU are mainly reported at sales level while information on real use, mostly in beef production, is poor. The most reliable indicator to measure AMU is the treatment incidence (TI100) calculated by using the De

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