Among large husbandry animals, swine are the most predisposed to zearalenone (ZEA) intoxication, mainly because cereal is an important component of their diet. Studies performed so far (in vivo, in vitro) suggest that ZEA and its metabolites, which may appear due to ZEA biotransformation (especially alpha-zearalenole; alpha-ZOL), can modify signaling cascades of endogenous sex steroids, through either receptor or non-receptor mechanisms. Of all age groups of swine, immature gilts are particularly predisposed to zearalenone intoxication, as manifested by the occurrence of genital tract tissue dysfunction on exposure to ZEA. The intensity of the adverse effects observed at either systemic or local level in gilts, when compared to sexually mature swine females, suggest that specific age-dependent physiological conditions may exist, which determine the high sensitivity of gilts to exogenous estrogen-like compounds, including ZEA.
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Poult Sci
May 2024
Cell and Molecular Biology Program, University of Arkansas, Fayetteville, Arkansas, USA; Department of Biological Sciences, University of Arkansas, Fayetteville, Arkansas, USA; Department of Poultry Science, University of Arkansas, Fayetteville, Arkansas, USA. Electronic address:
Bacterial chondronecrosis with osteomyelitis (BCO) lameness is the most critical animal health and welfare issue facing the broiler industry worldwide. It is estimated that 1 to 2% of bird condemnation at marketing age is caused by BCO lameness, resulting in tens of millions of dollars in annual losses. Fast-growing broilers are prone to mechanical stress that triggers bacterial translocation across epithelial barriers into the bloodstream, followed by bacterial colonization in the growth plate of long bones, and eventually, bone necrosis and lameness.
View Article and Find Full Text PDFToxins (Basel)
July 2022
Department of Agricultural, Forest and Food Sciences (DISAFA), Università degli Studi di Torino, Largo Braccini 2, 10095 Grugliasco, Italy.
Maize is considered one of the most susceptible crops to mycotoxin-producing fungi throughout the world, mainly belonging to the spp. and spp. Maize is mainly used as animal feeds in Italy, as well as for human consumption, being essential for all the protected designation of origin (DOP) products.
View Article and Find Full Text PDFJ Vet Med Sci
June 2014
Laboratory of Toxicology, Department of Environmental Veterinary Sciences, Graduate School of Veterinary Medicine, Hokkaido University, N18, W9, Kita-ku, Sapporo 060-0818, Japan.
Mycotoxins are fungal secondary metabolites that contaminate various feedstuffs and agricultural crops. The contamination of food by mycotoxins can occur before production, during storage, processing, transportation or marketing of the food products. High temperature, moisture content and water activity are among the predisposing factors that facilitate the production of mycotoxins in food.
View Article and Find Full Text PDFPol J Vet Sci
July 2009
Division of Veterinary Prophylaxis and Feed Hygiene, Department of Veterinary Health Protection, Faculty of Veterinary Medicine, University of Warmia and Mazury in Olsztyn, Oczapowskiego 13, 10-718 Olsztyn, Poland.
Among large husbandry animals, swine are the most predisposed to zearalenone (ZEA) intoxication, mainly because cereal is an important component of their diet. Studies performed so far (in vivo, in vitro) suggest that ZEA and its metabolites, which may appear due to ZEA biotransformation (especially alpha-zearalenole; alpha-ZOL), can modify signaling cascades of endogenous sex steroids, through either receptor or non-receptor mechanisms. Of all age groups of swine, immature gilts are particularly predisposed to zearalenone intoxication, as manifested by the occurrence of genital tract tissue dysfunction on exposure to ZEA.
View Article and Find Full Text PDFToxicol Sci
August 2006
Department of Food Science and Human Nutrition, and Center for Integrative Toxicology, Michigan State University, East Lansing, 48824, USA.
Activation of the innate immune system might predispose a host to toxicant-induced inflammation. In vitro macrophage models were employed to investigate the effects of preexposure to Toll-like receptor (TLR) agonists on induction of proinflammatory cytokine gene expression by the trichothecene mycotoxin deoxynivalenol (DON) and other toxicants. Priming of the murine RAW 264.
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