(C) 2010 IBRO. Published by Elsevier Ltd. All rights reserved.”
“A TaqMan probe-based real-time RT-PCR assay was developed for simultaneous detection of RNA of transmissible gastroenteritis virus (TGEV) in pig fecal samples and RNA of enhanced green fluorescent
protein (EGFP) added exogenously as an internal amplification control. The TGEV primers and probe were designed to be specific to a portion of the S gene sequence conserved in all TGEV isolates, but absent EPZ004777 in vitro in the closely related porcine respiratory coronaviruses. The optimized TaqMan assay detected a minimum of 2.8 copies of in vitro transcribed RNA of the target S gene and RNA extracted from 1 TCID(50)/ml of TGEV. Using 113 clinical samples received at our diagnostic laboratory over a 4-year period, the performance of the assay was tested and compared with that of a previously described nested RT-PCR assay. All the fecal samples which tested positive for TGEV by
the nested RT-PCR assay also tested positive by the TaqMan assay. However, approximately 9% of the samples that tested negative p53 activator by the nested RT-PCR assay tested positive by the TaqMan assay. These results indicate that the developed TaqMan assay is a highly sensitive diagnostic test for rapid detection of TGEV in pig fecal samples. (c) 2009 Elsevier B.V. All rights reserved.”
“Adriamycin (ADR) is a chemotherapeutic for the treatment of solid tumors. This quinone-containing anthracycline is well known to produce large amounts of reactive oxygen species (ROS) in vivo. A common complaint of patients undergoing long-term treatment with ADR is somnolence, often referred to as “”chemobrain.”" While ADR itself does not cross the blood brain barrier (BBB), we recently showed that ADR administration causes a peripheral increase in tumor necrosis factor alpha (TNF-alpha), which migrates across the BBB and leads to inflammation and oxidative stress in brain, most likely contributing to
the observed decline in cognition. In the current study, we measured levels of the antioxidant glutathione (GSH) in brains of mice injected intraparitoneally (i.p.) with ADR, as well as the levels and activities of several GKT137831 supplier enzymes involved in brain GSH metabolism. We observed significantly decreased GSH levels, as well as altered GSH/GSSG ratio in brains of ADR treated mice relative to saline-treated controls. Also observed in brains of ADR treated mice were increased levels of glutathione peroxidase (GPx), glutathione-S-transferase (GST), and glutathione reductase (GR). We also observed increased activity of GPx, but a significant reduction in GST and GR activity in mice brain, 72 h post i.p. injection of ADR (20 mg/kg body weight). Furthermore, we used redox proteomics to identify specific proteins that are oxidized and/or have differential levels in mice brains as a result of a single i.p. injection of ADR.