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  • 1
    ISSN: 1432-1440
    Keywords: β-Receptorblocking Eye-drops ; Bronchial Asthma ; Lung Function
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Summary Lung function was studied double blind and randomized in 5 patients with mild asthma bronchiale and 10 normal adults before and 30, 60 and 90 minutes after one drop of 0.5% Timolol, 0.6% Metipranolol or 0.9% NaCl in each eye. In the asthmatics bronchoconstriction was seen after both β-receptor blocking agents, more pronounced after Timolol than after Metripranolol. There was a decrease in the forced expiratory volume in one second (FEV1.0) of 32, respectively 18%. No changes were observed in the normal subjects. In a separate studie no significant changes were seen in the mean values of 10 other asthmatic subjects after 1% Pindolol, 3% Pilocarpin or 0.9% NaCl. However, in two patients FEV1.0 was reduced by 15% and 20% of the control values after applying Pindolol. In summary, not only β-receptorblocking agents without ISA produce a bronchoconstriction in asthmatic subjects, but also β-blocker with ISA in individual cases.
    Type of Medium: Electronic Resource
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  • 2
    Electronic Resource
    Electronic Resource
    Springer
    Marine biology 35 (1976), S. 269-275 
    ISSN: 1432-1793
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Abstract Four of the most abundant gorgonian species from the southwestern Cape waters, Eunicella papillosa (Esper, 1797), E. alba (Esper, 1797), E. tricoronata Velimirov, 1971 and Lophogorgia flamea (Ellis and Solander, 1786) were analysed for Ca and Mg by atomic absorption spectroscopy (AAS) and ethylenediaminetetraacetate (EDTA) titration. The total mineral content in the peripheral tissues, excluding the axial skeleton, expressed as the sum of CaCO3 and MgCO3 of dry matter was between 65.5 and 83.5%. The mineral content varied in different growth regions and all specimens showed a higher degree of mineralization at the base than at the branch tips. The MgCO3 concentration varied with genus and species and was between 9 and 11 mol %. The variation of the MgCO3 concentration within different growth regions of the same species was small and generally did not exceed 0.8 mol %. From the branch to the stem, CaCO3 and total mineral content was found to increase. The CaCO3:MgCO3 rations in different growth regions of all species indicated that the composition of the mesoskeleton with regard to the relative concentration of CaCO3 and MgCO3 is constant throughout the animal. Mineralogically, the mesoskeleton consists of high magnesian calcite as identified by X-ray diffraction. MgCO3 concentrations determined by the peak shift method and by AAS were in fair agreement. The MgCO3 data in gorgonian samples from the cold Atlantic Ocean and the warmer Indian Ocean show a linear relationship between water temperature and MgCO3 concentration already demonstrated by Chave (1954). However, our data were consistently lower by 1 to 2% than expected.
    Type of Medium: Electronic Resource
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  • 3
    Electronic Resource
    Electronic Resource
    Springer
    European journal of clinical pharmacology 38 (1990), S. S104 
    ISSN: 1432-1041
    Keywords: stereoisomers ; α-blockade ; β-blockade ; carvedilol
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology , Medicine
    Notes: Summary The racemic compound carvedilol possesses two complementary pharmacological effects, vasodilation and β-blockade. TheR- andS-enantiomers of carvedilol and the racemate were investigated with respect to the β-blocking, vasodilating, and hypotensive actions. In agreement with results obtained with other β-blockers, only theS-enantiomer of carvedilol exerts β-blocking effects. In contrast, no substantial difference between the enantiomers could be seen with respect to α-blockade. The greater hypotensive activity ofS-carvedilol may be attributed to β-blockade, which inhibits counter-regulatory mechanisms provoked by vasodilation. From these results it is concluded that there is a rationale for using carvedilol as the racemate. Using theS-enantiomer would lead to relatively strong β-blockade with only a weak vasodilating effect. TheR-enantiomer alone would act only as a hypotensive agent without β-blockade.
    Type of Medium: Electronic Resource
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  • 4
    Electronic Resource
    Electronic Resource
    Springer
    Current genetics 28 (1995), S. 173-176 
    ISSN: 1432-0983
    Keywords: Chromosome ; Electrophoretic karyotype ; Filamentous fungus ; Plant pathogen
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Abstract Genomic clones hybridizing to anonymous, single-copy sequences were used to probe chromosomesized DNAs of Fusarium oxysporum f. sp. cubense separated by pulsed-field gel electrophoresis. As expected, most clones hybridized to single chromosome bands. However, two of eight “single-copy” clones hybridized to two chromosomes in some, but not all, of 14 isolates examined. This observation suggests a degree of genetic duplication in the fungus and is consistent with recent electrophoretic karyotype analysis indicating that intraspecific differences in genome size and chromosome number may be explained, at least in part, by persistent genetic duplication.
    Type of Medium: Electronic Resource
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  • 5
    ISSN: 1365-2559
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Medicine
    Type of Medium: Electronic Resource
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  • 6
    Electronic Resource
    Electronic Resource
    Oxford, UK : Munksgaard International Publishers
    Allergy 59 (2004), S. 0 
    ISSN: 1398-9995
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Medicine
    Notes: Background:  The basophil activation test (BAT), which relies on flow cytometric quantitation of the allergen-induced up-regulation of the granule-associated marker CD63 in peripheral blood basophils, has been suggested to be a useful approach in detecting responsiveness to allergens. The purpose of this study was to establish the usefulness of the BAT with regard to the clinical history and current diagnostic tools in Hymenoptera venom allergy using a prospective study design.Methods:  Fifty-seven consecutive patients allergic to Hymenoptera venom as defined by a systemic reaction after an insect sting, and 30 age- and sex-matched control subjects with a negative history were included. The degree and nature of sensitization was confirmed by skin testing, specific immunoglobulin E (IgE), serum tryptase levels and BAT. In the nonallergic control group only analysis of specific IgE and BAT were performed. Correlation of BAT, skin test and specific IgE, respectively, with the clinical history in the allergic group was termed as sensitivity and in the control group as specificity.Results:  Twenty one of 23 (91.3%) bee venom allergic patients and 29 of 34 (85.3%) patients allergic to wasp and hornet venom tested positive in BAT. The overall sensitivity of BAT, specific IgE and skin tests were 87.7, 91.2 and 93.0%, respectively. The overall specificities were 86.7% for BAT and 66.7% for specific IgE. No correlation between the severity of clinical symptoms and the magnitude of basophil activation was observed.Conclusion:  The BAT seems to be an appropriate method to identify patients allergic to bee or wasp venom with a comparable sensitivity to standard diagnostic regimens. The higher specificity of BAT as compared with specific IgE makes this test a useful tool in the diagnosis of Hymenoptera venom allergy.
    Type of Medium: Electronic Resource
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  • 7
    ISSN: 1434-601X
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstract Electron density distributions in air shower cores recorded with the 32 m2 neon hodoscope of the Kiel array have been analysed, looking for the existence of significant multicores which might result from large transverse momentum emission of high energy particles. The shower sizes are between 104 and 5×106 particles, corresponding to primary energies up to a few times 107 GeV. Several spurious effects simulating multicores have been found, but there are no indications for the existence of large transverse momenta.
    Type of Medium: Electronic Resource
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  • 8
    Electronic Resource
    Electronic Resource
    Springer
    Journal of cancer research and clinical oncology 72 (1969), S. 88-101 
    ISSN: 1432-1335
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Description / Table of Contents: Zusammenfassung Im DS-Carcinosarkom, das auf der Chorioallantoismembran bebrüteter Hühnereier anwuchs, wurde im Frierstop-Verfahren der Gehalt an Nucleinsäuren, an Adenosinphosphaten, an Glucose, Lactat und NAD in Abständen von 24 Std bestimmt. In den gleichen Zeitabständen wurden die Spiegel an Glucose und Lactat im Blut der Hühnerembryonen ermittelt. Die Ergebnisse lassen erkennen, daß kurzfristige Wachstumsschwankungen der Tumoren mit Schwankungen der glykolytischen Energiegewinnung einhergehen. ATP-Gehalt und ATP: ADP-Quotient steigen an in der Phase exponentiellen Wachstums und sinken, wenn die Gewichtsentwicklung rückläufig wird. Der mittlere NAD-Gehalt beträgt bei den kleinsten Tumoren etwa 80 nMol/g und steigt dann in Abhängigkeit vom zunehmenden Tumorgewicht auf etwa das Doppelte an. Ebenso steigt auch der mittlere Blut-Lactatwert der Hühnerembryonen während des Tumorwaschstums gesetzmäßig an, jedoch nur bis zu Tumorgewichten um 1000 mg. Die negative Korrelation zwischen Glucosegehalt und Lactatgehalt der DS-Carcinosarkome wird signifikant bei einem p〈0,01. Diese Tumoren sammeln bis zu 40000 nMol/g Lactat an, was einem Gewebe-pH von etwa 6,4 entspricht. Sie stellen daher eine Ausnahme von der Regel dar, nach der ohne Erhöhung des arteriellen Glucoseangebots der pH-Wert des Tumorgewebes nur um maximal −0,4 Einheiten vom physiologischen Niveau abweicht.
    Notes: Summary After deep-freeze fixation of DS-carcinosarcoma propagated on the chorioallantois of embryonated eggs, the nucleic acids, adenosine phosphate, glucose, lactate and NAD were determined at intervals of 24 hrs.; glucose and lactate in blood of embryos were measured at the same intervals. Results demonstrated that short-term fluctuations of tumor growth paralleled fluctuations of glycolytic energy production. ATP and ATP:ADP ratios increased during exponential growth and decreased with loss of weight. The smallest tumors had a mean NAD-level of nearly 80 nMol/g which doubled with increasing tumor weight. The mean lactate level in the blood of chicken embryos also increased, however, only up to tumor weights of about 1000 mg. Negative correlation between glucose and lactate in DS-carcinosarcoma was signifikant at p〈0.01. The tumors accumulated lactate up to 40000 nMol/g equivalent to a tissue-pH of 6.4. They thus represent an exception of the rule, according to which without an increase of arterial glucose supply the pH-value of tumor tissue deviated only about a maximum of −0.4 units from the physiological standard.
    Type of Medium: Electronic Resource
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  • 9
    ISSN: 1591-9528
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Description / Table of Contents: Summary In according to earlier publications in which CAM-tumor-system tests have shown curative and toxic effects of seven coplanar Hetero-oligobases, a report is given here on four further substances of this group. By general low toxicity in embryo two of these increased tumor growth, further two inhibited tumor growth. It has thus become possible to find out five substances proved to be tumortoxical under 11 tested compounds. Two of these inhibited comparatively specific proliferation of cancer cells and were markedly DNA-affin and highly bacteriotoxic as earlier tests indicated. In the case of a further compound it is shown that on account of these properties no general correlation exists on coplanar Hetero-oligobases.
    Notes: Znsammenfassung Nach zwei vorausgegangenen Mitteilungen über kurative und toxische Wirkungen von sieben coplanaren Hetero-oligobasen am CAM-Tumor-System wird über weitere vier Substanzen dieser Stoffklasse berichtet. Bei durchgängig schwacher Embryotoxicität förderten zwei von ihnen das Tumorwachstum, während zwei weitere Wuchshemmung bewirkten. Damit sind fünf tumortoxische Verbindungen unter den elf untersuchten aufgefunden. Zwei von ihnen hemmen relativ spezifisch die Proliferation der Krebszellen. Sie wurden in früheren Versuchen als DNA-affin und stark bakteriotoxisch erkannt. Am Beispiel einer weiteren Substanz wird gezeigt, daß diese Eigenschaften nicht generell bei coplanaren Heterooligobasen korrelieren.
    Type of Medium: Electronic Resource
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  • 10
    Electronic Resource
    Electronic Resource
    s.l. ; Stafa-Zurich, Switzerland
    Key engineering materials Vol. 127-131 (Nov. 1996), p. 861-868 
    ISSN: 1013-9826
    Source: Scientific.Net: Materials Science & Technology / Trans Tech Publications Archiv 1984-2008
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
    Type of Medium: Electronic Resource
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