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  • 1
    ISSN: 1420-9071
    Keywords: Liver ischemia ; hepatic function ; aminopyrine demethylation ; ATP
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Medicine
    Notes: Summary Hepatic function was assessed by the aminopyrine breath test (ABT) in male Sprague Dawley rats 24 h after partial hepatic ischemia. ABT decreased progressively to 26.3 (p〈0.05) and 19.7% of dose (p〈0.05) after 90 and 120 min of ischemia, respectively. ABT at 24 h after injury was correlated to the concentration of ATP in the ischemic lobes 1 h after the onset of reperfusion (r2=0.971) but not to ALT activity in plasma at 1 h (r2=0.391). We conclude that postischemic ATP levels are a better index of subsequent hepatic function than ALT.
    Type of Medium: Electronic Resource
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  • 2
    Publication Date: 2011-07-19
    Description: During early lung development, airway tubes change shape. Tube length increases more than circumference as a large proportion of lung epithelial cells divide parallel to the airway longitudinal axis. We show that this bias is lost in mutants with increased extracellular signal-regulated kinase 1 (ERK1) and ERK2 activity, revealing a link between the ERK1/2 signaling pathway and the control of mitotic spindle orientation. Using a mathematical model, we demonstrate that change in airway shape can occur as a function of spindle angle distribution determined by ERK1/2 signaling, independent of effects on cell proliferation or cell size and shape. We identify sprouty genes, which encode negative regulators of fibroblast growth factor 10 (FGF10)-mediated RAS-regulated ERK1/2 signaling, as essential for controlling airway shape change during development through an effect on mitotic spindle orientation.〈br /〉〈br /〉〈a href="" target="_blank"〉〈img src="" border="0"〉〈/a〉   〈a href="" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Tang, Nan -- Marshall, Wallace F -- McMahon, Martin -- Metzger, Ross J -- Martin, Gail R -- 5T32HL007185/HL/NHLBI NIH HHS/ -- R01 CA131201/CA/NCI NIH HHS/ -- R01 CA131261/CA/NCI NIH HHS/ -- R01 CA78711/CA/NCI NIH HHS/ -- R01 DE17744/DE/NIDCR NIH HHS/ -- R01 GM077004/GM/NIGMS NIH HHS/ -- New York, N.Y. -- Science. 2011 Jul 15;333(6040):342-5. doi: 10.1126/science.1204831.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Anatomy, University of California, San Francisco, CA 94158, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="" target="_blank"〉PubMed〈/a〉
    Keywords: Adaptor Proteins, Signal Transducing ; Animals ; Cell Polarity ; Cell Proliferation ; Cell Shape ; Cell Size ; Epithelial Cells/cytology ; Fibroblast Growth Factor 10/genetics/metabolism ; Intracellular Signaling Peptides and Proteins ; Lung/cytology/*embryology/metabolism ; *MAP Kinase Signaling System ; Membrane Proteins/genetics/metabolism ; Mice ; Mice, Knockout ; Mitogen-Activated Protein Kinase 1/*metabolism ; Mitogen-Activated Protein Kinase 3/*metabolism ; Mitosis ; Models, Biological ; *Morphogenesis ; Mutation ; Organogenesis ; Phosphoproteins/genetics/metabolism ; Phosphorylation ; Proto-Oncogene Proteins p21(ras)/genetics/*metabolism ; Respiratory Mucosa/cytology/*embryology ; Spindle Apparatus/*physiology/ultrastructure
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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