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  • Signal Transduction  (2)
  • rubber  (2)
  • *Mutation  (1)
  • 1
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    LRP: role in vascular wall integrity and protection from atherosclerosis (2003)
    American Association for the Advancement of Science (AAAS)
    Details
    Publikationsdatum: 2003-04-12
    Beschreibung: Vascular smooth muscle cell (SMC) proliferation and migration are important events in the development of atherosclerosis. The low-density lipoprotein receptor-related protein (LRP1) mediates suppression of SMC migration induced by platelet-derived growth factor (PDGF). Here we show that LRP1 forms a complex with the PDGF receptor (PDGFR). Inactivation of LRP1 in vascular SMCs of mice causes PDGFR overexpression and abnormal activation of PDGFR signaling, resulting in disruption of the elastic layer, SMC proliferation, aneurysm formation, and marked susceptibility to cholesterol-induced atherosclerosis. The development of these abnormalities was reduced by treatment with Gleevec, an inhibitor of PDGF signaling. Thus, LRP1 has a pivotal role in protecting vascular wall integrity and preventing atherosclerosis by controlling PDGFR activation.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Boucher, Philippe -- Gotthardt, Michael -- Li, Wei-Ping -- Anderson, Richard G W -- Herz, Joachim -- GM 52016/GM/NIGMS NIH HHS/ -- HL20948/HL/NHLBI NIH HHS/ -- HL63762/HL/NHLBI NIH HHS/ -- NS43408/NS/NINDS NIH HHS/ -- New York, N.Y. -- Science. 2003 Apr 11;300(5617):329-32.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Molecular Genetics, University of Texas Southwestern Medical Center, 5323 Harry Hines Boulevard, Dallas, TX 75390-9046, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/12690199" target="_blank"〉PubMed〈/a〉
    Schlagwort(e): Animals ; Aorta/cytology/metabolism/*pathology ; Arteriosclerosis/*pathology/physiopathology/*prevention & control ; Benzamides ; Cattle ; Cell Division ; Cell Line ; Cholesterol, Dietary/administration & dosage ; Diet, Atherogenic ; Elastin/analysis ; Enzyme Inhibitors/pharmacology ; Imatinib Mesylate ; Ligands ; Low Density Lipoprotein Receptor-Related ; Protein-1/genetics/metabolism/*physiology ; Mesenteric Arteries/cytology/pathology ; Mice ; Mice, Knockout ; Mice, Transgenic ; Muscle, Smooth, Vascular/cytology/*metabolism/pathology ; Myocytes, Smooth Muscle/*metabolism/physiology ; Phosphorylation ; Piperazines/pharmacology ; Platelet-Derived Growth Factor/metabolism/pharmacology ; Proto-Oncogene Proteins c-sis ; Pyrimidines/pharmacology ; Receptor, Platelet-Derived Growth Factor beta/metabolism ; Signal Transduction
    Print ISSN: 0036-8075
    Digitale ISSN: 1095-9203
    Thema: Biologie , Chemie und Pharmazie , Informatik , Medizin , Allgemeine Naturwissenschaft , Physik
    Publiziert von American Association for the Advancement of Science (AAAS)
    Standort Signatur Erwartet Verfügbarkeit
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  • 2
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    Suppression of aging in mice by the hormone Klotho (2005)
    American Association for the Advancement of Science (AAAS)
    Details
    Publikationsdatum: 2005-08-27
    Beschreibung: A defect in Klotho gene expression in mice accelerates the degeneration of multiple age-sensitive traits. Here, we show that overexpression of Klotho in mice extends life span. Klotho protein functions as a circulating hormone that binds to a cell-surface receptor and represses intracellular signals of insulin and insulin-like growth factor 1 (IGF1), an evolutionarily conserved mechanism for extending life span. Alleviation of aging-like phenotypes in Klotho-deficient mice was observed by perturbing insulin and IGF1 signaling, suggesting that Klotho-mediated inhibition of insulin and IGF1 signaling contributes to its anti-aging properties. Klotho protein may function as an anti-aging hormone in mammals.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2536606/" target="_blank"〉〈img src="https://static.pubmed.gov/portal/portal3rc.fcgi/4089621/img/3977009" border="0"〉〈/a〉   〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2536606/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Kurosu, Hiroshi -- Yamamoto, Masaya -- Clark, Jeremy D -- Pastor, Johanne V -- Nandi, Animesh -- Gurnani, Prem -- McGuinness, Owen P -- Chikuda, Hirotaka -- Yamaguchi, Masayuki -- Kawaguchi, Hiroshi -- Shimomura, Iichiro -- Takayama, Yoshiharu -- Herz, Joachim -- Kahn, C Ronald -- Rosenblatt, Kevin P -- Kuro-o, Makoto -- R01 AG019712/AG/NIA NIH HHS/ -- R01 AG019712-05/AG/NIA NIH HHS/ -- R01 AG025326/AG/NIA NIH HHS/ -- R01 AG025326-03/AG/NIA NIH HHS/ -- R01AG19712/AG/NIA NIH HHS/ -- R01AG25326/AG/NIA NIH HHS/ -- R37 HL063762/HL/NHLBI NIH HHS/ -- U24 DK059637/DK/NIDDK NIH HHS/ -- New York, N.Y. -- Science. 2005 Sep 16;309(5742):1829-33. Epub 2005 Aug 25.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Pathology, University of Texas (UT) Southwestern Medical Center at Dallas, 5323 Harry Hines Bouleuvard, Dallas, TX 75390-9072, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/16123266" target="_blank"〉PubMed〈/a〉
    Schlagwort(e): Aging/genetics/*physiology ; Animals ; Blood Glucose/analysis ; Cell Line ; Cell Line, Tumor ; Eating ; Female ; Glucuronidase ; Insulin/blood/metabolism ; Insulin Resistance ; Insulin-Like Growth Factor I/metabolism/pharmacology ; Ligands ; Longevity/genetics/*physiology ; Male ; Membrane Proteins/chemistry/*genetics/pharmacology/*physiology ; Mice ; Mice, Transgenic ; Myoblasts/metabolism ; Oxygen Consumption ; Peptide Fragments/chemistry/pharmacology ; Phosphorylation ; Receptor, IGF Type 1/metabolism ; Receptor, Insulin/metabolism ; Receptors, Cell Surface/metabolism ; Recombinant Proteins/chemistry/isolation & purification/metabolism ; Signal Transduction
    Print ISSN: 0036-8075
    Digitale ISSN: 1095-9203
    Thema: Biologie , Chemie und Pharmazie , Informatik , Medizin , Allgemeine Naturwissenschaft , Physik
    Publiziert von American Association for the Advancement of Science (AAAS)
    Standort Signatur Erwartet Verfügbarkeit
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    AKTUELLE ARTIKEL
  • 3
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    Cancer. A bull's eye for targeted lung cancer therapy (2004)
    American Association for the Advancement of Science (AAAS)
    Details
    Publikationsdatum: 2004-06-05
    Beschreibung: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Minna, John D -- Gazdar, Adi F -- Sprang, Stephen R -- Herz, Joachim -- P50CA70907/CA/NCI NIH HHS/ -- New York, N.Y. -- Science. 2004 Jun 4;304(5676):1458-61.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Internal Medicine, University of Texas Southwestern Medical Center, Dallas, TX 75390, USA. john.minna@utsouthwestern.edu〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/15178790" target="_blank"〉PubMed〈/a〉
    Schlagwort(e): Adenocarcinoma/drug therapy/genetics/metabolism ; Amino Acid Substitution ; Antineoplastic Agents/therapeutic use ; Carcinoma, Non-Small-Cell Lung/drug therapy/*genetics/metabolism ; Controlled Clinical Trials as Topic ; Enzyme Inhibitors/therapeutic use ; Epidermal Growth Factor/metabolism ; *Genes, erbB-1 ; Humans ; Japan ; Ligands ; Lung Neoplasms/*drug therapy/*genetics/metabolism ; *Mutation ; Phosphorylation ; Protein Structure, Tertiary ; Quinazolines/*therapeutic use ; Receptor, Epidermal Growth Factor/*antagonists & ; inhibitors/chemistry/genetics/metabolism ; Sequence Deletion ; Smoking ; Treatment Outcome ; United States
    Print ISSN: 0036-8075
    Digitale ISSN: 1095-9203
    Thema: Biologie , Chemie und Pharmazie , Informatik , Medizin , Allgemeine Naturwissenschaft , Physik
    Publiziert von American Association for the Advancement of Science (AAAS)
    Standort Signatur Erwartet Verfügbarkeit
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    AKTUELLE ARTIKEL
  • 4
    Digitale Medien
    Digitale Medien
    Strain-induced large fluctuations during stress relaxation in polymer melts observed by small-angle neutron scattering. “Lozenges”, “butterflies”, and related theory (1991)
    Springer
    Colloid & polymer science 269 (1991), S. 195-216 
    Details
    ISSN: 1435-1536
    Schlagwort(e): Polymer networks ; polymer melts ; polymer blends ; rubber ; deformation ; small-angle neutron scattering ; dynamics ; relaxation ; polystyrene ; crosslinking ; heterogeneities ; finite extensibility ; entanglements ; demixing ; segregation
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Chemie und Pharmazie , Maschinenbau
    Notizen: Abstract We discuss the neutron scattering features of melts containing a fraction of labeled chains, and of rubbers containing a fraction of deuterated paths along several successive elementary chains. Both types of material are studied during relaxation after a fast deformation in very similar conditions. An unusual feature is the shape of the anisotropic scattering as visualized on a bidimensional detector: the isointensity lines have the shape of lozenges. A detailed review of various cases makes this appear as a general feature in SANS scattering from melts and rubbers in a state of partially relaxed deformation. We then describe results for mixtures of small labeled chains inside matrices of large entangled chains or crosslinked matrices: we find another unusual shape of the isointensity levels, called “butterfly”. We propose the lozenges to be a combination of the classical elliptical scattering with a butterfly scattering, which has a main axis orthogonal to the main axis of the ellipses. We discuss in more details the origin of the butterfly effect, by following two tracks: the first is several theories about demixing under strain, including influence of the strain on the enthalpic, elastic, and conformational terms of the free energy of mixing. The second track is the influence of heterogeneities in crosslinked materials. An explanation which would be common to the case of crosslinked and uncrosslinked material remains to be established.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1007/BF00665493
    Standort Signatur Erwartet Verfügbarkeit
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    Artikel (Nationallizenzen)
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  • 5
    Digitale Medien
    Digitale Medien
    Deuterium magnetic resonance on elongated networks: orientational order versus network structure (1987)
    Springer
    Colloid & polymer science 75 (1987), S. 45-48 
    Details
    ISSN: 1435-1536
    Schlagwort(e): rubber ; polydimethylsiloxane ; deuterium NMR ; orientational order ; trapped entanglements
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Chemie und Pharmazie , Maschinenbau
    Notizen: Abstract The orientational order generated in uniaxially strained (end-linked) polydimethylsiloxane rubbers is investigated as a function of the length of the precursor chains and of the polymer concentration at which the network was formed. The degree of orientational order was measured by means of the deuterium NMR technique performed on labelled network chains. The induced order increases with the density of crosslinking junctions and trapped entanglements. The observed effects are analysed versus the equilibrium swelling degree of the samples, in order to characterize the real network structure with respect to chain segment ordering.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1007/BF01188357
    Standort Signatur Erwartet Verfügbarkeit
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    Artikel (Nationallizenzen)
    Volltext
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