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  • 1
    Electronic Resource
    Electronic Resource
    Effect of captopril on myocardial β-adrenoceptor density and Giα-proteins in patients with mild to moderate heart failure due to dilated cardiomyopathy (1995)
    Springer
    European journal of clinical pharmacology 47 (1995), S. 389-394 
    Details
    ISSN: 1432-1041
    Keywords: Captopril ; Dilated cardiomyopathy ; ACE-inhibitors ; G-proteins ; β-adrenoceptor density
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology , Medicine
    Notes: Abstract In end-stage heart failure due to idiopathic dilated cardiomyopathy β1-adrenoceptors are downregulated and G1α-proteins are upregulated. The aim of the present study was to investigate the influence of the angiotensin-converting enzyme inhibitor captopril on β-adrenoceptor density and Giα-proteins in sequential endomyocardial biopsies. Nineteen patients with mild to moderate congestive heart failure due to idiopathic dilated cardiomyopathy (NYHA Class II–III) were studied before and after 8–11 weeks of therapy. Patients were randomised into a captopril and a control group; 9 patients received captopril 12.5–50 mg per day, (divided in 2–3 doses) p.o. in addition to “conventional” therapy with digoxin and diuretics, and 10 controls received “conventional” therapy only. Echocardiography, spiroergometry, right heart catheterisation and endomyocardial biopsies were performed before (baseline) and after treatment. Compared to baseline, captopril increased total β-adrenoceptor density by selectively increasing β1-adrenoceptors (31.6 vs 41.2 fmol·mg−1; p〈0.05) but had no significant effect on Giα-proteins. The results indicate that treatment with angiotensin-converting enzyme inhibitors partly restores myocardial β1-adrenoceptor density, and this action effect may contribute to the clinical improvement of patients with idiopathic dilated cardiomyopathy treated in this way.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00196850
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  • 2
    Electronic Resource
    Electronic Resource
    Messung mechanischer eigenschaften von kunststoffen mit einem heizbaren pendelgerät (1978)
    Weinheim : Wiley-Blackwell
    Angewandte Makromolekulare Chemie 67 (1978), S. 99-116 
    Details
    ISSN: 0003-3146
    Keywords: Chemistry ; Polymer and Materials Science
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology , Physics
    Description / Table of Contents: The well-known pendulum apparatus for the testing of paints (DIN 53157) has been provided with a heating unit and used for testing polymer materials.The obtained value (PW) turns out to be easily determinable and appropriate for the characterization of viscoelastic properties of polymers as a function of temperature. The results are discussed in connection with those obtained with the torsional pendulum.This paper is intended to stimulate further measurements, discussions and above all to bring up new interpretation possibilities of the results.
    Notes: Das nach DIN 53157 bekannte und der Lackprüfung dienende Pendelgerät wurde für diese Messungen mit einer Heizung versehen und für Untersuchungen an Kunststoffen eingesetzt. Die erhaltene Meßgröße, der Pendelwert, erweist sich als eine geeignete und leicht bestimmbare Größe zur Charakterisierung verschiedener Kunststofftypen und erlaubt eine Beschreibung und Erklärung ihres visko-elastischen Verhaltens in Abhängigkeit von der Temperatur. Die Ergebnisse werden auch im Vergleich mit den Ergebnissen aus freien Torsionsschwingungen diskutiert. Weitere Messungen, Diskussionen und vor allem eine Erweiterung der Interpretation der Ergebnisse sollen durch diese Arbeit angeregt werden.
    Additional Material: 8 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/apmc.1978.050670108
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  • 3
    Electronic Resource
    Electronic Resource
    Wirkungsweise und Charakterisierung multifunktioneller Autoabgas-Katalysatoren (1978)
    Weinheim : Wiley-Blackwell
    Chemie Ingenieur Technik - CIT 50 (1978), S. 905-910 
    Details
    ISSN: 0009-286X
    Keywords: Chemistry ; Polymer and Materials Science
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology , Process Engineering, Biotechnology, Nutrition Technology
    Notes: Mode of action and characterization of multifunctional automotive exhaust catalysts. Because of the pending reduction in permissible concentration of toxic components in automotive exhausts the catalysts presently available will have to be replaced by more efficient systems. For these “second generation” catalysts multifunctional platinum/rhodium based catalysts are in the course of development, with provision being made for control of the fuel/air mixture. The new catalysts destroy both NOx as well as carbon monoxide and hydrocarbons and are effective in the neighbourhood of the stoichiometric composition of the fuel/air mixture. The mode of action of the new “three-way” catalysts is described in detail and the present trends in development are outlined.
    Additional Material: 10 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/cite.330501202
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  • 4
    Electronic Resource
    Electronic Resource
    Polymetall-Komplexe: Komplexierung von Cluster-Dreiecken durch den Liganden HC(PPh2)3 („Tripod“)Diese Arbeit wurde vom Centre National de la Recherche Scientifique (ERA 721) und A.T.P. N° 4095 (Catalyse Homogène) unterstützt. (1980)
    Weinheim : Wiley-Blackwell
    Zeitschrift für die chemische Industrie 92 (1980), S. 1058-1059 
    Details
    ISSN: 0044-8249
    Keywords: Chemistry ; General Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Additional Material: 1 Tab.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/ange.19800921226
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  • 5
    Electronic Resource
    Electronic Resource
    Polymetallic Complexes: Complexation of the Triangular Faces of Clusters by the Tripod Ligand, HC(PPh2)3This work was supported by the Centre National de la Recherche Scientifique (ERA 721) and A.T.P. N° 4095 (Catalyse Homogène). (1980)
    Weinheim : Wiley-Blackwell
    Angewandte Chemie International Edition in English 19 (1980), S. 1024-1025 
    Details
    ISSN: 0570-0833
    Keywords: Chemistry ; General Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Additional Material: 1 Tab.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/anie.198010241
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  • 6
    Electronic Resource
    Electronic Resource
    Synthesis of the New Silanediyldiphosphinite tBu2Si(OPPh2)2 and its Reactions with the Norbornadiene Complexes C7H8M(CO)4 (M = Cr, Mo, W). Crystal Structures of cis-M(CO)4[tBu2Si(OPPh2)2] (M = Cr, Mo) (1995)
    Weinheim : Wiley-Blackwell
    Zeitschrift für anorganische Chemie 621 (1995), S. 694-698 
    Details
    ISSN: 0044-2313
    Keywords: Silanediyldiphosphinite ; chelate complexes ; synthesis ; structure, multinuclear NMR spectroscopy ; Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: Synthese eines neuen Silandiyldiphosphinits tBu2Si(OPPh2)2 und seine Reaktionen mit den Norbornadien-Komplexen C7H8M(CO)4 (M = Cr, Mo, W). Kristallstrukturen von cis-M(CO)4[tBu2Si(OPPh2)2] (M = Cr, Mo)Silandiyldiphosphinit tBu2Si(OPPh2)2 1 wurde dargestellt. 1 reagiert mit den Norbornadienkomplexen C7H8M(CO)4 (M = Cr, Mo, W) zu sechsgliedrigen Chelaten des Typs cis-M(CO)4[tBu2Si(OPPh2)2] 2-4. Die Kristallstrukturen des Chromkomplexes Cr(CO)4[tBuSi(OPPh2)2] 2 und des Molybdänkomplexes Mo(CO)4[tBuSi(OPPh2)2] 3 wurden bestimmt. Beide kristallisieren triklin (Raumgruppe P1) mit den Zellkonstanten: (2) a = 1 093(3) pm, b = 1 477(5) pm und c = 1 542(5) pm; α = 108.4(2)°, b̃ = 103.87(11)° und b̃ = 104.57(10)°; U = 2.143(12) nm3; Z = 2; (3) a = 1097.8(2) pm, b = 1 483.7(2) pm und c = 1 554.3(2) pm; α = 108.10(1)°, b̃ = 103.956(6)° und γ = 104.213(7)°; U = 2.1899(6) nm3; Z = 2. Beide Komplexe bestehen aus diskreten, leicht verdrillten oktaedrischen Monomeren mit annähernd planaren Chelatringen. Im Gegensatz hierzu wurde bei den Röntgenstrukturanalysen verwandter Komplexe Konformationen ermittelt, die von Twistboot zu „Chaiselongue“ variieren.
    Notes: Silanediyldiphosphinite tBu2Si(OPPh2)2 1 has been synthesised. 1 reacts with the norbornadiene complexes C7H8M(CO)4 (M = Cr, Mo, W) to give six-membered chelate rings of the type cis-M(CO)4[tBu2Si(OPPh2)2] 2-4. The crystal structures of the chromium and molybdenum complexes cis-Cr(CO)4[tBu2Si(OPPh2)2] 2 and cis-Mo(CO)4[tBu2Si(OPPh2)2] 3 have been determined. Both complexes crystallise in the triclinic system (space group P1) with unit cell parameters: (2) a = 1 093(3) pm, b = 1 477(5) pm and c = 1 542(5) pm; α = 108.4(2)°, b̃ = 103.87(11)° and b̃ = 104.57(10)°; U = 2.143(12) nm3; Z = 2; (3) a = 1 097.8(2) pm, b = 1 483.7(2) pm and c = 1 554.3(2) pm; α = 108.10(1)°, b̃ = 103.956(6)° and γ = 104.213(7)°; U = 2.1899(6) nm3; Z = 2. Both 2 and 3 consist of discrete, slightly distorted, octahedral monomers in which the six-membered chelate rings are essentially planar. In contrast, the conformations of the chelate rings found in crystal structures of analogous complexes vary from twist-boat to “chaise longue”.
    Additional Material: 1 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/zaac.19956210433
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  • 7
    Electronic Resource
    Electronic Resource
    First steps from a two-dimensional protein index towards a response-regulation map for Bacillus subtilis (1997)
    Weinheim : Wiley-Blackwell
    Electrophoresis 18 (1997), S. 1451-1463 
    Details
    ISSN: 0173-0835
    Keywords: Bacillus subtilis ; Two-dimensional polyacrylamide gel electrophoresis ; Protein index ; Stress proteins ; SigmaB ; Chemistry ; Biochemistry and Biotechnology
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Biology , Chemistry and Pharmacology
    Notes: Data on the identification of proteins of Bacillus subtilis on two-dimensional (2-D) gels as well as their regulation are summarized and the identification of 56 protein spots is included. The pattern of proteins synthesized in Bacillus subtilis during exponential growth, during starvation for glucose or phosphate, or after the imposition of stresses like heat shock, salt- and ethanol stress as well as oxidative stress was analyzed. N-terminal sequencing of protein spots allowed the identification of 93 proteins on 2-D gels, which are required for the synthesis of amino acids and nucleotides, the generation of ATP, for glycolyses, the pentose phosphate cycle, the citric acid cycle as well as for adaptation to a variety of stress conditions. A computer-aided analysis of the 2-D gels was used to monitor the synthesis profile of more than 130 protein spots. Proteins performing housekeeping functions during exponential growth displayed a reduced synthesis rate during stress and starvation, whereas spots induced during stress and starvation were classified as specific stress proteins induced by a single stimulus or a group of related stimuli, or as general stress proteins induced by a variety of entrely different stimuli. The analysis of mutants in global regulators was initiated in order to establish a response regulation map for B. subtilis. These investigations demonstrated that the alternative sigma factor σB is involved in the regulation of almost all of the general stress proteins and that the phoPR two-component system is required for the induction of a large part but not all of the proteins induced by phosphate starvation.
    Additional Material: 4 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/elps.1150180820
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