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  • 1
    Electronic Resource
    Electronic Resource
    Rapid calcium release and proton uptake at the disk membrane of isolated cattle rod outer segments. 2. Kinetics of light-stimulated calcium release and proton uptake (1981)
    s.l. : American Chemical Society
    Biochemistry 20 (1981), S. 5511-5516 
    Details
    ISSN: 1520-4995
    Source: ACS Legacy Archives
    Topics: Biology , Chemistry and Pharmacology
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1021/bi00522a025
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  • 2
    Electronic Resource
    Electronic Resource
    Rapid calcium release and proton uptake at the disk membrane of isolated cattle rod outer segments. 1. Stoichiometry of light-stimulated calcium release and proton uptake (1981)
    s.l. : American Chemical Society
    Biochemistry 20 (1981), S. 5500-5510 
    Details
    ISSN: 1520-4995
    Source: ACS Legacy Archives
    Topics: Biology , Chemistry and Pharmacology
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1021/bi00522a024
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  • 3
    Electronic Resource
    Electronic Resource
    Einfluß von Nitrofurantoin auf die Blutgerinnung und Fibrinolyse der Schwangeren, Wöchnerinnen und Neugeborenen (1971)
    Springer
    Journal of molecular medicine 49 (1971), S. 977-982 
    Details
    ISSN: 1432-1440
    Keywords: Coagulation ; fibrinolysis ; newborn infants ; Nitrofurantoin ; pregnancy ; puerperium ; Blutgerinnung ; Fibrinolyse ; Neugeborene ; Nitrofurantoin ; Schwangerschaft ; Wochenbett
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Description / Table of Contents: Zusammenfassung In Gerinnungsuntersuchungen konnte bei Schwangeren unter der Behandlung mit Nifurantin® gegenüber einer unbehandelten Vergleichsgruppe eine deutlich signifikante Verlängerung der Gerinnselbildungszeit nachgewiesen werden. Sowohl bei der Schwangeren als auch bei Wöchnerinnen stieg Plasminogen unter der Behandlung mit Nifurantin® gegenüber den unbehandelten Kontrollgruppen deutlich signifikant an. Die Euglobulin-Lyse zeigte eine entsprechende Verkürzung. Eine Erhöhung der geburtshilflichen oder Wochenbetts-Komplikationsrate war demgegenüber nicht nachweisbar. Die bei entsprechender Eliminationshalbwertzeitverlängerung für Nitrofurantoin beim Neugeborencn erwartete gleichlaufende Reaktion konnte durch eine entsprechende Plasminogen-Erhöhung im Nabelschnurblut nach Nifurantin®-Behandlung der Mutter bestätigt werden. Der Fibrinanstieg und die Normalisierung der Kjeldahl-Lyse waren in den ersten Lebenstagen nach dieser Behandlung verzögert.
    Notes: Summary In comparison with untreated controls, a significant prolongation of thromboelastographic fibrin formation time under treatment with Nifurantin® was observed in pregnancy. Both in pregnancy and in puerperium Nifurantin® caused a significant increase of plasminogen. In the same way, euglobulin-lysis-time is shortened. In the Nifurantin® treated group, we found no increase of complications in the course of delivery or puerperium. In view of the extension of the half-life of Nitrofurantoin in the newborn infant, the same reaction of coagulation and fibrinolysis has to be assumed. When the mother is treated with Nifurantin®, plasminogen is increased in cord blood and normalization of Kjeldahl-fibrin and -lysis is prolonged.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01489463
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  • 4
    Electronic Resource
    Electronic Resource
    Haptoglobintypen bei chronischen lebererkrankungen (1978)
    Springer
    Journal of molecular medicine 56 (1978), S. 973-976 
    Details
    ISSN: 1432-1440
    Keywords: Haptoglobin types ; Liver cirrhosis ; Serum groups and disease ; Haptoglobin-Typen ; Lebercirrhose ; Serumgruppen und Krankheit
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Description / Table of Contents: Zusammenfassung Es wird über die Verteilung der Haptoglobinphaenotypen 1–1, 2–1 und 2–2 bei Patienten mit Lebercirrhose (n=174) berichtet und ein Vergleich mit der Hp-Verteilung in einem Normalkollektiv (n=194) angestellt. Dabei ergibt sich bei Patienten mit Lebercirrhose für das Hp 1–1 mit 32% ein signifikantes Überwiegen (p〈0,00025) gegenüber der Normalverteilung bei gesunden Probanden, die für Hp 1–1 mit 14% angegeben ist. Die Wahrscheinlichkeit, an einer Lebercirrhose zu erkranken, ist danach für Träger des Hp 1–1 um den Faktor 4,3 größer als für Menschen mit dem Hp 2–2.
    Notes: Summary The distribution of haptoglobin phenotypes (Hp) 1–1, 2–1 and 2–2 in 174 patients suffering from liver cirrhosis was determined and compared with a reference group consisting of 194 healthy subjects. The study revealed a high frequency of the Hp 1–1 phenotype (32%) in the patients as compared with the control group (14%). This difference is statistically highly significant (p〈0.00025). It was calculated that in individuals of type Hp 1–1, the risk of liver cirrhosis is 4.3-fold higher than in persons with the phenotype Hp 2–2.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01480152
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  • 5
    Electronic Resource
    Electronic Resource
    The mechanism of action of valinomycin on the thylakoid membrane (1971)
    Springer
    The journal of membrane biology 4 (1971), S. 179-192 
    Details
    ISSN: 1432-1424
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Chemistry and Pharmacology
    Notes: Summary Most of the studies devoted to the mechanism by which certain antibiotics increase the ion permeability ofbiological membranes have been carried out on artificialmodel systems. Undoubtedly one of the major reasons for this was that some of the most relevant biological membrane systems are of submicroscopic dimensions and thus inaccessible to the common electrochemical measuring techniques. This holds for the inner membrane systems of chloroplasts, mitochondria, and retinal rods. Since it is not trivial that a mechanism of action found for a model membrane works as well in a biological one with a much higher structural complexity, it seemed worth-while to study the mechanism of action of ionophorous antibiotics on the above-mentioned biological membranes. In this paper, a nonelectrochemical method for measuring both the voltage and the current across the inner chloroplast membrane (or thylakoid membrane) is established in extension of earlier work. This method is used to characterize the mode of action of valinomycin on the thylakoid membrane.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF02431970
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  • 6
    Electronic Resource
    Electronic Resource
    Gramicidin in chromatophores of Rhodobacter sphaeroides (1991)
    Springer
    European biophysics journal 19 (1991), S. 213-216 
    Details
    ISSN: 1432-1017
    Keywords: Photosynthesis ; Chromatophore ; Gramicidin ; Electrochromism ; Size analysis
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Physics
    Notes: Abstract Chromatophores of Rhodobacter sphaeroides were excited with light flashes to generate a transmembrane electrical potential difference. The electric relaxation was measured by electrochromic absorption changes as a function of added gramicidin. At low gramicidin/bacteriochlorophyll (BChl) molar ratios the decay of the electrochromic absorption changes showed a biphasic behaviour, with a fast phase relaxing at some μs, and a slow phase relaxing at more than 100 ms. This was attributable to a mixture of vesicles containing gramicidin dimers with others containing none. The concentration dependence of this effect was linear. This implied full dimerization of gramicidin. The data were interpreted to yield an average bacteriochlorophyll content per chromatophore of 770(±150) and the conductance of a single gramicidin dimer in the chromatophore membrane of 15(±4) pS (in about 115 mM KCl).
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00196347
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  • 7
    Electronic Resource
    Electronic Resource
    Optical probes for electrochemical events and for conformational changes in biological membranes (1980)
    Springer
    European biophysics journal 6 (1980), S. 18-19 
    Details
    ISSN: 1432-1017
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Physics
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00647496
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  • 8
    Electronic Resource
    Electronic Resource
    A picosecond electrical signal from chloroplasts related to primary events of photosynthesis (1981)
    Springer
    European biophysics journal 7 (1981), S. 283-283 
    Details
    ISSN: 1432-1017
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Physics
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF02425414
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  • 9
    Electronic Resource
    Electronic Resource
    Human liver carboxylesterase - Purification and molecular properties
    Amsterdam : Elsevier
    Archives of Biochemistry and Biophysics 165 (1974), S. 749-763 
    Details
    ISSN: 0003-9861
    Source: Elsevier Journal Backfiles on ScienceDirect 1907 - 2002
    Topics: Biology , Chemistry and Pharmacology , Physics
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1016/0003-9861(74)90304-X
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  • 10
    Electronic Resource
    Electronic Resource
    Current-voltage studies on the thylakoid membrane in the presence of ionophores
    Amsterdam : Elsevier
    Biochimica et Biophysica Acta (BBA)/Biomembranes 394 (1975), S. 76-92 
    Details
    ISSN: 0005-2736
    Source: Elsevier Journal Backfiles on ScienceDirect 1907 - 2002
    Topics: Biology , Chemistry and Pharmacology , Medicine , Physics
    Type of Medium: Electronic Resource
    URL: http://linkinghub.elsevier.com/retrieve/pii/0005-2736(75)90206-0
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