Project description:Using an ex-vivo testicular culture from rats, we carried out transcriptomic experiments to identify the pathway of toxicity ellicited by the fungicides carbendazim, iprodione alone or in combination. we used commercial Agilent Microarray GE 4x44K Rat (V3) Gene Expression Microarray (G2514F) AMADID : 028282
Project description:Using an ex-vivo testicular culture from rats, we carried out transcriptomic experiments to identify the pathway of toxicity ellicited by the fungicides carbendazim, iprodione alone or in combination. we used commercial Agilent Microarray GE 4x44K Rat (V3) Gene Expression Microarray (G2514F) AMADID : 028282 Cultures were performed with and without fungicides. When required, CBZ, IPR or mixture was added beginning from day 2, at 50 nM or 500 nM for CBZ and at 50 nM or 500 nM for IPR; 50 nM each or 500 nM each for the mixture. For microarray experiments, three different pools of seminiferous tubules were exposed to two concentrations of CBZ, IPR or their mixture (50 nM and 500 nM) or to complete medium with vehicle (control cells) for 7, 14, and 21 days. Each condition of exposure to fungicides was compared with control cells at the same time point.
Project description:Toxicogenomics profiling of bone marrow from rats treated with topotecan in combination with oxaliplatin: a mechanistic strategy to inform combination toxicity.
Project description:The Norway rat has important impacts on our life. They are amongst the most used research subjects, resulting in ground-breaking advances. At the same time, wild rats live in close association with us, leading to various adverse interactions. In face of this relevance, it is surprising how little is known about their natural behaviour. While recent laboratory studies revealed their complex social skills, little is known about their social behaviour in the wild. An integration of these different scientific approaches is crucial to understand their social life, which will enable us to design more valid research paradigms, develop more effective management strategies, and to provide better welfare standards. Hence, I first summarise the literature on their natural social behaviour. Second, I provide an overview of recent developments concerning their social cognition. Third, I illustrate why an integration of these areas would be beneficial to optimise our interactions with them.
Project description:BackgroundMurine kobuviruses (MuKV) are newly recognized picornaviruses first detected in murine rodents in the USA in 2011. Little information on MuKV epidemiology in murine rodents is available. Therefore, we conducted a survey of the prevalence and genomic characteristics of rat kobuvirus in Guangdong, China.ResultsFecal samples from 223 rats (Rattus norvegicus) were collected from Guangdong and kobuviruses were detected in 12.6% (28) of samples. Phylogenetic analysis based on partial 3D and complete VP1 sequence regions showed that rat kobuvirus obtained in this study were genetically closely related to those of rat/mouse kobuvirus reported in other geographical areas. Two near full-length rat kobuvirus genomes (MM33, GZ85) were acquired and phylogenetic analysis of these revealed that they shared very high nucleotide/amino acids identity with one another (95.4%/99.4%) and a sewage-derived sequence (86.9%/93.5% and 87.5%/93.7%, respectively). Comparison with original Aichivirus A strains, such human kobuvirus, revealed amino acid identity values of approximately 80%.ConclusionOur findings indicate that rat kobuvirus have distinctive genetic characteristics from other Aichivirus A viruses. Additionally, rat kobuvirus may spread via sewage.