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Articles 1 - 4 of 4
Full-Text Articles in Medical Physiology
Rna Isolation In Duchenne Muscular Dystrophy (Dmd) Mice Models, Salem Abu Al-Burak
Rna Isolation In Duchenne Muscular Dystrophy (Dmd) Mice Models, Salem Abu Al-Burak
Undergraduate Student Research Internships Conference
Fibrosis is a progressive and typically irreversible disease process characterized by the excessive deposition of collagen in organs and in tissues of the musculoskeletal (MSK) system1,2. This process, which causes loss of organ and tissue function, can be initiated by micro-traumas3, an excessive and/or prolonged immune response1, the activation and proliferation of fibrosis-inducing progenitor cells4, and a pro-fibrotic extra-cellular microenvironment5. In parallel with the events that initiate fibrosis, genetic or environmental influences may cause cells and tissues to become predisposed to fibrosis development prior to initiation. This suggests that these …
Na/K-Atpase Amplification Of Oxidant Stress; A Universal But Unrecognized Clinical Target?, Zijian Xie, Phd, Joseph I. Shapiro, Md
Na/K-Atpase Amplification Of Oxidant Stress; A Universal But Unrecognized Clinical Target?, Zijian Xie, Phd, Joseph I. Shapiro, Md
Joseph I Shapiro MD
The Na/K-ATPase has a signaling function which appears to be separate from its ion pumping function. This signaling function refers to the transduction of conformational changes in the Na/K-ATPase alpha1 subunit into activating Src’s tyrosine kinase activity, triggering a cascade which generates reactive oxygen species (ROS), modulates other signaling pathways, and causes many physiological and pathophysiological effects. We have recently observed that ROS themselves as well as cardiotonic steroids can actually initiate the signal by directly inducing conformational changes in alpha1. It therefore appears that the Na/K-ATPase signal cascade can serve as a feed forward amplification for ROS with circulating …
Na/K-Atpase Amplification Of Oxidant Stress; A Universal But Unrecognized Clinical Target?, Zijian Xie, Phd, Joseph I. Shapiro, Md
Na/K-Atpase Amplification Of Oxidant Stress; A Universal But Unrecognized Clinical Target?, Zijian Xie, Phd, Joseph I. Shapiro, Md
Marshall Journal of Medicine
The Na/K-ATPase has a signaling function which appears to be separate from its ion pumping function. This signaling function refers to the transduction of conformational changes in the Na/K-ATPase alpha1 subunit into activating Src’s tyrosine kinase activity, triggering a cascade which generates reactive oxygen species (ROS), modulates other signaling pathways, and causes many physiological and pathophysiological effects. We have recently observed that ROS themselves as well as cardiotonic steroids can actually initiate the signal by directly inducing conformational changes in alpha1. It therefore appears that the Na/K-ATPase signal cascade can serve as a feed forward amplification for ROS with circulating …
Tak1 Mediates Tgf Beta-1 Responses In Gingival Fibroblasts, Hanna Kuk
Tak1 Mediates Tgf Beta-1 Responses In Gingival Fibroblasts, Hanna Kuk
Electronic Thesis and Dissertation Repository
In fibroblasts, transforming growth factor β-1 (TGFβ1) signals via canonical and non-canonical pathways to promote wound healing or hyper-contractile responses resulting in scars. The oral cavity however does not scar and fibrotic responses such as gingival hyperplasia are characterized by a hyper-proliferative response. The involvement of non-canonical, TGFβ-activated kinase-1 (TAK1) - mediated TGFβ1 signaling in gingival fibroblasts has not been previously examined. Here I show that TAK1 selective inhibitor (5Z)-7-Oxozeaenol blocks TGFβ1-induced expression of wound healing and fibrotic marker CCN2 (connective tissue growth factor) in gingival fibroblasts. Genome-wide expression profiling revealed that essentially all TGFβ1 induced genes were in fact …