Project description:Chlorine is a widely used industrial chemical that is also considered a chemical threat agent. Inhalation of chlorine gas can cause acute injury to the respiratory tract, including the death of airway epithelial cells. Failure to efficiently repair the epithelial damage is associated with long-term respiratory abnormalities, including airway fibrosis. We previously developed a model of airway injury in which mice exposed to chlorine gas exhibit epithelial damage and develop fibrosis in large airways. In the present study, we measured gene expression in developing fibrotic lesions isolated from chlorine-exposed mice 4 days after exposure and compared to expression in corresponding areas from unexposed mice. Mesenchymal tissue was isolated by laser-capture microdissection to limit the analysis to the developing fibrotic lesions. The 4-day time point was chosen in an attempt to identify early profibrotic signaling events because at this time fibroblast proliferation has commenced but the fibrotic scar has not yet formed.
Project description:Investigation of whole genome gene expression level changes in Salmonella enterica serova Enteritidis and Typhimurium under chlorine treatment An eighteen chip study using total RNA isolated from three separate cultures of (1) S. Enteritidis in BHI broth (2) S. Typhimurium in BHI broth (3) S. Enteritidis in BHI broth w/ 130 ppm chlorine (4) S. Typhimurium in BHI w/ 130 ppm chlorine (5) S. Enteritidis in BHI broth w/ 390 ppm (6) S. Typhimurium in BHI broth w/ 390 ppm. Each chip measures the expression level of 5,027 ORFs covering the whole genome of S. Enteritidis and S. Typhimurium.
Project description:Investigation of whole genome gene expression level changes in Salmonella enterica serova Enteritidis and Typhimurium under chlorine treatment
