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  • Earth Resources and Remote Sensing  (11)
  • Animals  (5)
  • General Chemistry  (3)
  • Polymer and Materials Science  (3)
  • Cell & Developmental Biology
  • Fisheries
  • 1995-1999  (23)
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  • 1
    Electronic Resource
    Electronic Resource
    Synthesis and Structural Study by Wide-Angle X-ray Scattering (WAXS) of Polymeric {Ln2[M(opba)]3}·S Compounds Containing 4f LnIII and 3d MII {Ln2[M(opba)]3}·S Ions [opba = ortho-Phenylenebis(oxamato), S = Solvent Molecules] (1999)
    Weinheim : Wiley-Blackwell
    Berichte der deutschen chemischen Gesellschaft 1999 (1999), S. 527-531 
    Details
    ISSN: 1434-1948
    Keywords: Lanthanides ; WAXS ; Ladder polymers ; Rare-earth compounds ; Supramolecular chemistry ; Chemistry ; General Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Notes: The compounds of formula Ln2[M(opba)]3·xH2O·yDMSO containing 4f LnIII and 3d MII ions have been synthesized; opba stands for ortho-phenylenebis(oxamato). These compounds crystallize poorly, and hence structural information has been obtained from the wide angle X-ray scattering (WAXS) technique. It has been shown that the compounds present the same ladder-like motif as that previously described for Tm2[Cu(opba)]3·4H2O·10DMF. Changing the LnIII and/or MII ions results in more or less pronounced distortions of the ladders. For a given MII ion, changing the LnIII ion from LaIII to LuIII results in a decrease of the Ln-M distance parallel to the lanthanide contraction. In the same way, for a given rare earth, changing the MII ion from CuII to NiII and ZnII ions also results in the decrease of the Ln-M distance in accord with the decreasing radii of the MII ions. The structural details have been analyzed and discussed.
    Additional Material: 6 Ill.
    Type of Medium: Electronic Resource
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    Paper (German National Licenses)
  • 2
    Electronic Resource
    Electronic Resource
    Bone loss (osteopenia) in old male mice results from diminished activity and availability of TGF-β (1998)
    New York, N.Y. : Wiley-Blackwell
    Journal of Cellular Biochemistry 70 (1998), S. 478-488 
    Details
    ISSN: 0730-2312
    Keywords: osteoporosis ; osteopenia ; aging ; bone formation ; growth factors ; Life and Medical Sciences ; Cell & Developmental Biology
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Biology , Chemistry and Pharmacology , Medicine
    Notes: One of the universal characteristics of the long bones and spines of middle-age and older mammals is a loss in bone mass (osteopenia). In humans, if this bone loss is severe enough, it results in osteoporosis, a skeletal disorder characterized by a markedly increased incidence of fractures with sequelae that may include pain, loss of mobility, and in the event of hip fracture, even death within a relatively few months of injury. An important contributing factor to the development of osteopororsis appears to be a diminution in the number and activity of osteoblasts responsible for synthesizing new bone matrix. The findings in the present and other similar studies suggest that this reduction in osteoblast number and activity is due to an age-related diminution in the size and osteogenic potential of the bone marrow osteoblast progenitor cell (OPC or CFU-f) compartment. We previously postulated that these regressive changes in the OPC/CFU-f compartment occurred in old animals because of a reduction in the amount and/or activity of TGF-β1, an autocrine growth factor important in the promotion of OPC/CFU-f proliferation and differentiation. In support of this hypothesis, we now report that (1) the osteogenic capacity of the bone marrow of 24-month-old BALB/c mice, as assessed in vivo, is markedly reduced relative to that of 3-4-month-old animals, (2) that the matrix of the long bones of old mice contains significantly less TGF-β than that of young mice, (3) that OPC's/CFU-f's isolated from old mice produce less TGF-β in vitro than those recovered from young mice, and (4) that OPC's/CFU-f's from old mice express significantly more TGF-β receptor (Types I, II, and III) than those of young animals and that such cells are more responsive in vitro to exogenous recombinant TGF-β1. We also find that colony number and proliferative activity of OPC's/CFU-f's of young mice and old mice, respectively, are significantly reduced when incubated in the presence of neutralizing TGF-β1 antibody. Collectively, these data are consistent with the hypothesis that in old male mice the reduction in the synthesis and, perhaps, availability from the bone matrix of TGF-β1 contributes to a diminution in the size and development potential of the bone marrow osteoprogenitor pool. J. Cell. Biochem. 70:478-488. © 1998 Wiley-Liss, Inc.
    Additional Material: 5 Ill.
    Type of Medium: Electronic Resource
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  • 3
    Electronic Resource
    Electronic Resource
    Erratum. Self-reported signs and symptoms in breast implant patients with novel antibodies to silicone surface associated antigens [anti-SSAA(x)] (1995)
    New York, NY [u.a.] : Wiley-Blackwell
    Journal of Applied Biomaterials 6 (1995), S. 305-305 
    Details
    ISSN: 1045-4861
    Keywords: Chemistry ; Polymer and Materials Science
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Medicine , Technology
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/jab.770060413
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  • 4
    Electronic Resource
    Electronic Resource
    Self-reported signs and symptoms in breast implant patients with novel antibodies to silicone surface associated antigens [anti-SSAA(x)] (1995)
    New York, NY [u.a.] : Wiley-Blackwell
    Journal of Applied Biomaterials 6 (1995), S. 153-160 
    Details
    ISSN: 1045-4861
    Keywords: Chemistry ; Polymer and Materials Science
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Medicine , Technology
    Notes: In research animals, the immune adjuvant activity of silicone in eliciting antibodies to associated protein antigens is now well established. In humans, the immune adjuvant activity of silicone remains controversial. Clusters of data from various research groups are beginning to define the boundary conditions for future large epidemiological studies. In that spirit, this manuscript reports pilot clinical data from a serological study conducted 3 years ago and reported previously in this journal. Sera from a self-selected symptomatic population of patients with breast implants were assayed for elevated concentrations of antibodies showing binding avidity to silicone surface associated antigens [anti-SSAA(x)]. In that study of 249 patients, two distinct statistically significant subgroups were identified on the basis of the serological assay alone: patients without any elevated anti-SSAA(x) (negative) and patients with elevated anti-SSAA(x) (positive) (p 〈 0.001). In this study, a clinical survey returned by 226 of those patients was correlated with the previously acquired serological findings. The 11 most common clinical complaints reported by the 199 anti-SSAA(x) negative patients and by the 27 anti-SSAA(x) positive were compared and their frequencies analyzed. The 199 anti-SSAA(x) negative patients, as a group, showed a lower frequency of a variety of signs and symptoms compared to the 27 anti-SSAA(x) positive patients. Statistically significant differences were seen in three of the symptoms: fever, foot pain, and sleep disturbance (p 〈 0.05). In addition, the syndrome of fever in the absence of local chest pain was a significantly associated with anti-SSAA(x) positivity (p 〈 0.001). © 1995 John Wiley & Sons, Inc.
    Additional Material: 1 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/jab.770060302
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  • 5
    Electronic Resource
    Electronic Resource
    Synthesis, crystal structure, and magnetic properties of 5-methyl-l,2,4-triazole-nitronyl nitroxide: A one-dimensional compound with unusually large ferromagnetic intermolecular interactions (1996)
    Weinheim : Wiley-Blackwell
    Advanced Materials 8 (1996), S. 60-62 
    Details
    ISSN: 0935-9648
    Keywords: Chemistry ; Polymer and Materials Science
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology , Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics , Physics
    Additional Material: 4 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/adma.19960080111
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  • 6
    Electronic Resource
    Electronic Resource
    Synergie zwischen magnetischer Wechselwirkung und Spin-Crossover in einem Eisen(III)-Komplex mit einem organischen Radikal als Liganden (1996)
    Weinheim : Wiley-Blackwell
    Zeitschrift für die chemische Industrie 108 (1996), S. 2250-2253 
    Details
    ISSN: 0044-8249
    Keywords: Eisenverbindungen ; Magnetische Eigenschaften ; Radikalkationen ; Spin-Crossover ; Chemistry ; General Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Additional Material: 3 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/ange.19961081816
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  • 7
    Electronic Resource
    Electronic Resource
    Synergy between Magnetic Interaction and Spin Crossover in an Iron(III) Complex with an Organic Radical as Ligand (1996)
    Weinheim : Wiley-Blackwell
    Angewandte Chemie International Edition in English 35 (1996), S. 2113-2116 
    Details
    ISSN: 0570-0833
    Keywords: iron compounds ; magnetic properties ; radical cations ; spin crossover ; Chemistry ; General Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Additional Material: 3 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/anie.199621131
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  • 8
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    Beta-secretase cleavage of Alzheimer's amyloid precursor protein by the transmembrane aspartic protease BACE (1999)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1999-10-26
    Description: Cerebral deposition of amyloid beta peptide (Abeta) is an early and critical feature of Alzheimer's disease. Abeta generation depends on proteolytic cleavage of the amyloid precursor protein (APP) by two unknown proteases: beta-secretase and gamma-secretase. These proteases are prime therapeutic targets. A transmembrane aspartic protease with all the known characteristics of beta-secretase was cloned and characterized. Overexpression of this protease, termed BACE (for beta-site APP-cleaving enzyme) increased the amount of beta-secretase cleavage products, and these were cleaved exactly and only at known beta-secretase positions. Antisense inhibition of endogenous BACE messenger RNA decreased the amount of beta-secretase cleavage products, and purified BACE protein cleaved APP-derived substrates with the same sequence specificity as beta-secretase. Finally, the expression pattern and subcellular localization of BACE were consistent with that expected for beta-secretase. Future development of BACE inhibitors may prove beneficial for the treatment of Alzheimer's disease.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Vassar, R -- Bennett, B D -- Babu-Khan, S -- Kahn, S -- Mendiaz, E A -- Denis, P -- Teplow, D B -- Ross, S -- Amarante, P -- Loeloff, R -- Luo, Y -- Fisher, S -- Fuller, J -- Edenson, S -- Lile, J -- Jarosinski, M A -- Biere, A L -- Curran, E -- Burgess, T -- Louis, J C -- Collins, F -- Treanor, J -- Rogers, G -- Citron, M -- New York, N.Y. -- Science. 1999 Oct 22;286(5440):735-41.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Amgen, Inc., One Amgen Center Drive, M/S 29-2-B, Thousand Oaks, CA 91320-1799, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/10531052" target="_blank"〉PubMed〈/a〉
    Keywords: Alzheimer Disease/drug therapy/*enzymology ; Amino Acid Motifs ; Amino Acid Sequence ; Amyloid Precursor Protein Secretases ; Amyloid beta-Peptides/*biosynthesis ; Amyloid beta-Protein Precursor/*metabolism ; Animals ; Aspartic Acid Endopeptidases/chemistry/genetics/*isolation & ; purification/*metabolism ; Binding Sites ; Brain/enzymology/metabolism ; Cell Line ; Cloning, Molecular ; Endopeptidases ; Endosomes/enzymology ; Gene Expression ; Gene Library ; Golgi Apparatus/enzymology ; Humans ; Hydrogen-Ion Concentration ; Molecular Sequence Data ; Oligonucleotides, Antisense/pharmacology ; Peptides/metabolism ; Protease Inhibitors/pharmacology ; RNA, Messenger/genetics/metabolism ; Recombinant Fusion Proteins/metabolism ; Transfection
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
    Published by American Association for the Advancement of Science (AAAS)
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  • 9
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    New funds plant seeds for genome research effort (1997)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1997-01-03
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Kahn, P -- New York, N.Y. -- Science. 1997 Jan 3;275(5296):25-6.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/8999529" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Australia ; Biotechnology/*economics ; Financing, Government ; *Genetics, Medical ; *Genome, Human ; Genotype ; Human Genome Project/*economics ; Humans ; Mutation ; *Research Support as Topic ; Sequence Analysis, DNA
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
    Published by American Association for the Advancement of Science (AAAS)
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  • 10
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    DNA from an extinct human (1997)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1997-07-11
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Kahn, P -- Gibbons, A -- New York, N.Y. -- Science. 1997 Jul 11;277(5323):176-8.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/9235628" target="_blank"〉PubMed〈/a〉
    Keywords: Africa ; Animals ; Base Sequence ; *Biological Evolution ; DNA, Mitochondrial/*genetics/isolation & purification ; Hominidae/*genetics ; Humans ; Mutation ; Polymerase Chain Reaction ; Sequence Analysis, DNA ; Sequence Homology, Nucleic Acid
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
    Published by American Association for the Advancement of Science (AAAS)
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