Unhealthy diets are widespread and linked to a number of detrimental clinical outcomes. The current preregistered experiment extended Expectancy Theory into the study of food intake; specifically, we tested whether a fast-food restaurant affects food expectancies, or the emotions one expects to feel while eating highly (e.g.
View Article and Find Full Text PDFContext: Dosing parameters are needed to ensure the best practice guidelines for knee osteoarthritis.
Objective: To determine whether resistance training affects pain and physical function in individuals with knee osteoarthritis, and whether a dose-response relationship exists. Second, we will investigate whether the effects are influenced by Kellgren-Lawrence grade or location of osteoarthritis.
Although transcriptomic profiling has become the standard approach for exploring molecular differences in the primate brain, very little is known about how the expression levels of gene transcripts relate to downstream protein abundance. Moreover, it is unknown whether the relationship changes depending on the brain region or species under investigation. We performed high-throughput transcriptomic (RNA-Seq) and proteomic (liquid chromatography coupled with tandem mass spectrometry) analyses on two regions of the human and chimpanzee brain: The anterior cingulate cortex and caudate nucleus.
View Article and Find Full Text PDFThe S-nitrosoglutathione-metabolizing enzyme, GSNO reductase (GSNOR), has emerged as an important regulator of protein S-nitrosylation. GSNOR ablation is protective in models of asthma and heart failure, raising the idea that GSNOR inhibitors might hold therapeutic value. Here, we investigated the effects of a small molecule inhibitor of GSNOR (GSNORi) in mouse RAW 264.
View Article and Find Full Text PDFGraefes Arch Clin Exp Ophthalmol
July 2010
Background: To evaluate risk factors for subject withdrawals from multicenter clinical trials evaluating glaucoma medications.
Methods: An analysis of prospective, randomized, multicenter, parallel, active-controlled clinical trials with 70 subjects/treatment arm published from 1996-2008.
Results: We analyzed 36 glaucoma studies including 17,511 subjects at 1,294 clinical sites.
Graefes Arch Clin Exp Ophthalmol
October 2010
Styrene is both hepatotoxic and pneumotoxic in mice. Its mode of action is not clear, but it may be related to oxidative stress including a very large decrease in reduced glutathione (GSH). The current studies evaluated if: (1) the more toxic R-styrene oxide had a greater effect on reduced GSH levels than the less toxic S-styrene oxide, (2) the ratio of reduced to oxidized forms of glutathione was altered by styrene or styrene oxide, (3) other enzymes involved in the oxidant status of the cell, namely glutathione reductase, glutathione peroxidase and gamma-glutamylcysteine synthetase were altered, and (4) lipid peroxidation, as measured by the determination of malondialdehyde, increased.
View Article and Find Full Text PDFJ Toxicol Environ Health A
February 2005
Styrene produced cytotoxicity in the terminal bronchioles of mice, but not rats, due to metabolites produced in situ by CYP2F2 metabolism. It has generally been presumed that styrene toxicity is mediated by styrene 7,8-oxide, but styrene oxide is not much more toxic than styrene. In contrast, ring-oxidized metabolites (4-vinylphenol or its metabolites) induce much greater toxicity.
View Article and Find Full Text PDFStyrene is hepatotoxic and pneumotoxic in mice. Its major metabolite styrene oxide and its minor, but potent, metabolite 4-vinylphenol cause similar toxicities. Styrene and styrene oxide cause decreases in reduced glutathione levels in tissues.
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