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  • 1995-1999  (5)
  • 1990-1994
  • 1965-1969  (2)
  • 1997  (5)
  • 1969  (2)
  • 1
    Electronic Resource
    Electronic Resource
    Oxford, UK : Blackwell Publishing Ltd
    British journal of dermatology 137 (1997), S. 0 
    ISSN: 1365-2133
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Medicine
    Type of Medium: Electronic Resource
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  • 2
    ISSN: 1398-9995
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Medicine
    Notes: The specific IgE antibodies to moth (Bombyx mori) and midge (Chironomus yoshimatsui) were measured by the Pharmacia CAP system in 51 house-dust-mite-sensitive asthma patients. None of these patients had definite histories of exposure to these insects or apparent evidence of insect-induced asthma symptoms. The RAST-inhibition assay was performed to investigate cross-allergenicity between these two insects. Furthermore, IgE immunoblotting was done to study the IgE-binding components in moth and midge extracts. Thirty (59%) of these patients showed positive IgE antibodies to moth, while 25 (49%) showed positive IgE antibodies to midge. Those frequencies of positivity were similar to that for Japanese cedar pollen, which is well known to cause allergy. A significant correlation (r=0.863) was observed between IgE antibody liters of these two insects. The results from the RAST-inhibition assay indicated cross-allergenicity between these insects and also the existence of species-specific allergens. Fifteen IgE-binding components in moth extract were observed. The most frequent IgE-binding protein was the 79-kDa (84.2%), followed by the 72-kDa (78.9%), the 82-kDa (57.9%), and the 76-kDa (57.9%) proteins. Those were considered to be major allergens in moth. Twenty-four IgE-binding components in midge extract were observed. However, no IgE-binding protein to which over 50% of patient sera reacted was observed. These results suggest that these two insects may be considered to bear important allergens and that there is cross-allergenicity between these insects as well as species-specific allergens.
    Type of Medium: Electronic Resource
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  • 3
    ISSN: 1432-0584
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Type of Medium: Electronic Resource
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  • 4
    Electronic Resource
    Electronic Resource
    Springer
    Colloid & polymer science 234 (1969), S. 1124-1127 
    ISSN: 1435-1536
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology , Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
    Description / Table of Contents: Zusammenfassung In dieser Mitteilung wird eine Simulation-Technik beschrieben, die zur Gel-Filtration eines Gemisches von zwei nichtionischen oberflächenaktiven Substanzen verwendbar ist. Die Verwendbarkeit wurde mit einem Gemisch von Decyl- und Dodecyl-dimethylamin-N-oxiden geprüft. Die theoretischen Elutionskurven zeigten gute Übereinstimmung mit der experimentellen Kurve. Es wird nicht nur experimentell, sondern auch theoretisch gezeigt, daß die Gel-Flitration eine zweckmäßige und bequeme Methode zur Isolierung der Komponente mit einer niedrigeren KMK von dem Gemisch liefert.
    Notes: Summary In this paper is described a simulation technique applicable to the gel filtration of a mixture of two nonionic surfactants. The applicability was tested by using a mixture of decyl- and dodecyl-dimethylamine-N-oxides. The theoretical elution curves showed a good agreement with the experimental ones. It can be shown not only experimentally but also theoretically that the gel filtration is a powerful and convenient method to isolate the component which has a lower CMC from the mixture.
    Type of Medium: Electronic Resource
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  • 5
    Electronic Resource
    Electronic Resource
    Springer
    Colloid & polymer science 229 (1969), S. 159-166 
    ISSN: 1435-1536
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology , Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
    Notes: Summary Surface tension, electrical conductivity, light scattering and nuclear magnetic resonance measurements were carried out in aqueous solutions of a series ofω-phenylalkyltrimethylammonium bromides. The conclusion is summarized as follows. 1) The pentyl and higher homologs form micelles in aqueous solutions, provided the concentration is larger than a definite value (CMC). As expected, CMC decreases and association number of a micelle increases with an increase in the alkyl-chain length. 2) The butyl derivative does not form large aggregates that are qualified to be called “micelles”. No distinct CMC is observed. 3) In a micellar solution, surfactant molecules are rapidly exchanged between micelles and bulk water phase. 4) Critical micelle concentration is affected by the introduction of a phenyl group at the end of an alkyl chain in such a manner as if 2.7 methylene groups were introduced.
    Type of Medium: Electronic Resource
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  • 6
    ISSN: 1434-9949
    Keywords: Rheumatoid Arthritis ; Serine Proteinases ; PMN Elastase ; Articular Cartilage ; Stromelysin-1 ; Tissue inhibitor of metalloproteinases-1 (TIMP-1)
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Summary Objective was to study the significance and the mechanism of action of elastase from polymorphonuclear leukocyte (PMN elastase) in patients with rheumatoid arthritis (RA). The experiments conducted consisted of two phases. Firstly, articular cartilage and synovia from 8 patients with RA undergoing total knee replacement were obtained, and the gelatinolytic enzyme activity was extracted with 2M guanidine hydrochloride. The gelatinolytic activity of each tissue was measured to confirm that the activity was due to PMN elastase by using an antihuman leukocyte elastase antibody. Secondly, the levels of PMN elastase-α1 proteinase inhibitor complex (EIC) in the blood and synovial fluid of 170 patients with RA were measured by immunoassay. The results were as follows: 1. Gelatinolitic activity was shown to be mainly due to PMN elastase, and found to be highest in cartilage and synovia in RA joints. 2. The EIC levels in plasma of RA patients were significantly higher than those in gout and osteoarthritis (OA), and the EIC levels increased according to the stage of articular cartilage destruction. Moreover, the EIC levels in synovial fluid of RA patients were higher compared to those of OA patients. The activity of PMN elastase was elevated in destructive joints of RA. With the progression of articular cartilage destruction, EIC levels in plasma of RA patients increased as well. We suggest that PMN elastase may play a significant role in RA disease.
    Type of Medium: Electronic Resource
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  • 7
    Electronic Resource
    Electronic Resource
    Springer
    European archives of oto-rhino-laryngology and head & neck 254 (1997), S. 153-157 
    ISSN: 1434-4726
    Keywords: Apoptosis ; Labyrinthine vestibule ; Aminoglycoside toxicity ; Zinc toxicity ; Nick-end labeling
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract We reported that apoptosis occurred in the guinea pig vestibular hair cells after chronic aminoglycoside treatments. In the present study, we used in situ nick-end labeling to determine whether apoptosis was also induced by the acute effects of aminoglycosides in guinea pig ampullar cristae. In addition, we evaluated the effect of zinc supplements upon these ototoxic treatments. After a local application of streptomycin directly to the round window, we found labeled bodies in the vestibular hair cells. The zinc supplement increased the number of labeled bodies resulting in severe hair cell loss. These findings indicate that the acute effects of aminoglycosides also induce apoptosis of the vestibular hair cells, and that zinc enhances aminoglycoside ototoxicity. Consequently, we propose that an interaction with ion channels may play a key mechanism in the processes of apoptosis affecting the vestibular hair cells.
    Type of Medium: Electronic Resource
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