نتایج جستجو برای: don

تعداد نتایج: 8281  

2016
Jian Wei He Yousef I. Hassan Norma Perilla Xiu-Zhen Li Greg J. Boland Ting Zhou

Deoxynivalenol (DON) is a toxic secondary metabolite produced by several Fusarium species that infest wheat and corn. Food and feed contaminated with DON pose a health risk to both humans and livestock and form a major barrier for international trade. Microbial detoxification represents an alternative approach to the physical and chemical detoxification methods of DON-contaminated grains. The p...

2017
Delphine Payros Ulrich Dobrindt Patricia Martin Thomas Secher Ana Paula F L Bracarense Michèle Boury Joelle Laffitte Philippe Pinton Eric Oswald Isabelle P Oswald

An increasing number of human beings from developed countries are colonized by Escherichia coli strains producing colibactin, a genotoxin suspected to be associated with the development of colorectal cancers. Deoxynivalenol (DON) is the most prevalent mycotoxin that contaminates staple food-especially cereal products-in Europe and North America. This study investigates the effect of the food co...

Journal: :Toxicological sciences : an official journal of the Society of Toxicology 2005
Hui-Ren Zhou Qunshan Jia James J Pestka

Trichothecene mycotoxins and other translational inhibitors activate mitogen-activated protein kinase (MAPKs) by a mechanism called the "ribotoxic stress response," which drives both cytokine gene expression and apoptosis in macrophages. The purpose of this study was to identify upstream kinases involved in the ribotoxic stress response using the trichothecene deoxynivalenol (DON) and the RAW 2...

Journal: :International journal of clinical and experimental medicine 2015
Hao Yang Xiaoxue Zha Yaojun Cai Fen Wang Zhangbi Wu Bo Wu Xuemei Jia Defa Zhu

The study aims to observe the impacts of thyroxine (T4) combined with donepezil (DON) on hippocampal ultrastructures and expressions of synaptotagmin-1 and SNAP-25 in adult rats with hypothyroidism. All rats were randomly divided into five groups: the normal control group (CON), the hypothyroidism group (Hypo), the T4 treatment group (T4), the DON treatment group (DON) and the T4+DON combined t...

Journal: :Vaccine 2015
Christian Savard Carl A Gagnon Younes Chorfi

Cereal commodities are frequently contaminated with mycotoxins produced by the secondary metabolism of fungal infection. Among these contaminants, deoxynivalenol (DON), also known as vomitoxin, is the most prevalent type B trichothecene mycotoxin worldwide. Pigs are very sensitive to the toxic effects of DON and are frequently exposed to naturally contaminated feed. Recently, DON naturally cont...

Journal: :Food chemistry 2013
Joice Sifuentes dos Santos Thiago Montagner Souza Elisabete Yurie Sataque Ono Elisabete Hiromi Hashimoto Manoel Carlos Bassoi Martha Zavariz de Miranda Eiko Nakagawa Itano Osamu Kawamura Elisa Yoko Hirooka

The occurrence of deoxynivalenol (DON) was evaluated in 113 wheat samples from the northern and central/southwestern regions of Paraná State, Brazil during the 2008 and 2009 growing seasons, and this rate of occurrence was used to estimate the DON dietary exposure. The DON determination was carried out by an indirect competitive enzyme-linked immunosorbent assay. DON was detected in 66.4% sampl...

ژورنال: شیمی آلی و پلیمر 2012

یکی از مکانیسم هایی که در جهت کاهش تاثیرات توکسین داکسی نیوالنون DON شناسایی شده، دست ورزی جایگاه هدف آن پروتئین ریبوزومی L3 (RPL3) می باشد. در این پژوهش دو تغییر نقطه ای(اسید آمینه شماره 258 از تریپتوفان به سیستئین و شماره 259 از هیستیدین به تیروزین) در توالی cDNA ژن RPL3 گوجه فرنگی با استفاده از تکنیک جهش زایی با جایگاه مشخص (SDM) انچام پذیرفت. گیاه مدل توتون تراریخت با LeRPL3 ی دست ورزی شده ...

Journal: :Toxicological sciences : an official journal of the Society of Toxicology 2009
Chidozie J Amuzie Junko Shinozuka James J Pestka

Deoxynivalenol (DON), a trichothecene mycotoxin found in grains and cereal-based foods worldwide, impairs weight gain in experimental animals but the underlying mechanisms remain undetermined. Oral exposure to DON induces rapid and transient upregulation of proinflammatory cytokine expression in the mouse. The latter are known to induce several suppressors of cytokine signaling (SOCS), some of ...

Journal: :The British journal of nutrition 2009
Paul C Turner Elizabeth F Taylor Kay L M White Janet E Cade Christopher P Wild

Deoxynivalenol (DON) is a toxic fungal metabolite found on wheat, maize and barley. We previously reported a significant association between the amount of DON in a single 24 h urine sample and the average cereal intake over 7 d for 300 UK adults. In this more detailed analysis of the data, food diary information (n 255) for the day of urine collection (model I), the previous 24 h period (model ...

Journal: :Toxicological sciences : an official journal of the Society of Toxicology 2008
Jennifer S Gray Hee Kyong Bae James C B Li Allan S Lau James J Pestka

Translational inhibitors such as the trichothecene mycotoxin deoxynivalenol (DON) and ribosomal inhibitory proteins (RIPs) induce mitogen-activated protein kinase (MAPK)-driven chemokine and cytokine production by a mechanism known as the ribotoxic stress response (RSR). Double-stranded RNA-activated protein kinase (PKR) associates with the ribosome making it uniquely positioned to sense 28S ri...

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