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  • 1
    Electronic Resource
    Electronic Resource
    Amsterdam : Elsevier
    Phytochemistry 25 (1986), S. 1621-1624 
    ISSN: 0031-9422
    Keywords: Labiatae ; Salvia miltiorrhiza ; clyptotanshinone ; diterpene ; ferruginol. ; immobilized plant cells
    Source: Elsevier Journal Backfiles on ScienceDirect 1907 - 2002
    Topics: Biology , Chemistry and Pharmacology
    Type of Medium: Electronic Resource
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  • 2
    ISSN: 0031-9422
    Keywords: Labiatae ; Salvia miltiorrhiza ; cryptotanshinone. ; diterpene ; ferruginol ; habituated cells ; plant cell culture ; two-stage culture method
    Source: Elsevier Journal Backfiles on ScienceDirect 1907 - 2002
    Topics: Biology , Chemistry and Pharmacology
    Type of Medium: Electronic Resource
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  • 3
    Electronic Resource
    Electronic Resource
    Amsterdam : Elsevier
    Phytochemistry 24 (1985), S. 1931-1933 
    ISSN: 0031-9422
    Keywords: Labiatae ; Salvia miltiorrhiza ; auxin ; diterpene ; ferruginol. ; plant cell culture
    Source: Elsevier Journal Backfiles on ScienceDirect 1907 - 2002
    Topics: Biology , Chemistry and Pharmacology
    Type of Medium: Electronic Resource
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  • 4
    ISSN: 0031-9422
    Keywords: Labiatae ; Salvia miltiorrhiza ; cryptotanshinone ; diterpene ; ferruginol. ; nutritional factors ; plant cell culture ; two-stage culture method
    Source: Elsevier Journal Backfiles on ScienceDirect 1907 - 2002
    Topics: Biology , Chemistry and Pharmacology
    Type of Medium: Electronic Resource
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  • 5
    ISSN: 1432-0533
    Keywords: Major histocompatibility complex class II ; Wallerian degeneration ; Microglia ; Autoimmune disease ; Experimental allergic encephalitis
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Summary To clarify the implication of the major histocompatibility complex class II (Ia) antigen induction in microglia following Wallerian degeneration in the central nervous system (CNS), experimental allergic encephalitis (EAE) was adoptively transferred to Lewis rats in which Ia antigens had been induced in microglia at the sites of Wallerian degeneration. In addition to randomly distributed typical EAE lesions, the recipient rats developed distinct inflammatory lesions in accord with the distribution of Ia-positive microglia; i.e., in the ipsilateral thalamus after cortical cryoinjury, and in the ipsilateral optic nerve, the contralateral optic tract and superior colliculus after unilateral eye ball enucleation. Thus, the EAE locus may be targeted by this approach. The inflammatory response was inducible by transfer of myelin basic protein-stimulated lymphocytes but not by transfer of phytohemagglutinin-stimulated or non-stimulated lymphocytes. When examined using monoclonal antibody surface markers; OX-6 for Ia antigen, W3/13 for pan T lymphocyte and OX-8 for cytotoxic/suppresser T lymphocyte, the types of lymphocytes in these lesions did not differ from those in ordinary EAE lesions in the spinal cord. The potential role of non-immunologically induced Ia-positive cell clusters that serve as a target for autoimmune CNS diseases was discussed.
    Type of Medium: Electronic Resource
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  • 6
    ISSN: 1432-0533
    Keywords: Key words Gelatinase A ; β-Amyloid ; Microglia ; Alzheimer's disease ; Schwann cell
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract Gelatinase A is an enzyme capable of cleaving soluble β-amyloid protein (βAP), and may function as an α-secretase to produce secretory forms of amyloid precursor protein. We examined gelatinase A immunoreactivity in the brains and posterior roots of neurologically normal, lacunar stroke, Alzheimer disease (AD), amyotrophic lateral sclerosis, progressive supranuclear palsy and myasthenia gravis cases. The gelatinase A antibody stained only microglial cells in the white matter in all the brain tissues. In AD brain, the reactive microglia located in the center of classical senile plaques, as well as in other microglial cells in the gray matter, showed no immunoreactivity. Gelatinase A in white matter microglial cells may play a role in preventing local deposition of βAP. In the posterior root, Schwann cells had positive immunoreactivity. As with other metalloproteases, gelatinase A in Schwann cells may play an antiproliferative role.
    Type of Medium: Electronic Resource
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  • 7
    ISSN: 1432-0533
    Keywords: Gelatinase A ; β-Amyloid ; Microglia ; Alzheimer's disease ; Schwann cell
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract Gelatinase A is an enzyme capable of cleaving soluble β-amyloid protein (βAP), and may function as an α-secretase to produce secretory forms of amyloid precursor protein. We examined gelatinase A immunoreactivity in the brains and posterior roots of neurologically normal, lacunar stroke, Alzheimer disease (AD), amyotrophic lateral sclerosis, progressive supranuclear palsy and myasthenia gravis cases. The gelatinase A antibody stained only microglial cells in the white matter in all the brain tissues. In AD brain, the reactive microglia located in the center of classical senile plaques, as well as in other microglial cells in the gray matter, showed no immunoreactivity. Gelatinase A in white matter microglial cells may play a role in preventing local deposition of βAP. In the posterior root, Schwann cells had positive immunoreactivity. As with other metalloproteases, gelatinase A in Schwann cells may play an antiproliferative role.
    Type of Medium: Electronic Resource
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  • 8
    ISSN: 1432-0533
    Keywords: Major histocompatibility complex ; Ia antigens ; Microglia ; Experimental allergic encephalomyelitis
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Summary Monoclonal antibodies (MRC OX-6 and OX-17) recognized three types of cells expressing Ia antigen during the course of acute experimental allergic encephalomyelitis (EAE) in rats. In earlier stages of the disease, in animals with or without paralysis, Ia antigens were mostly localized to subarachnoidal and perivascular lymphocytic and histiocytic cell infiltrates, possibly serving as antigen-presenting cells. On the other hand, in convalescent rats, Ia antigens were expressed in a large number of cells with dendritic processes heavily populating the spinal gray matter. The appearance of these Ia-expressing cells in the convalescent stage coincided with the development of degenerating axon terminals in the spinal gray matter. These Ia-expressing cells possessed morphological features characteristic of microglia and were positive for ML-1 lectin but did not express glial fibrillary acidic protein. Immune electron microscopy disclosed the presence of Ia reaction products in the Golgi apparatus, endoplasmic reticulum and plasma membrane of these cells with dendritic processes, indicating active synthesis of Ia molecules in microglia. In addition, Ia antigens were localized to the cells with ultrastructural features of macrophages. Thus, Ia-expressing cells in EAE seems to play dual roles: the induction of immunological reactions during earlier stages and the participation in reparative processes during convalescence.
    Type of Medium: Electronic Resource
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  • 9
    Electronic Resource
    Electronic Resource
    Springer
    Medical & biological engineering & computing 17 (1979), S. 135-137 
    ISSN: 1741-0444
    Keywords: Impedance measurement ; Skin impedance
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Chemistry and Pharmacology , Medicine
    Type of Medium: Electronic Resource
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  • 10
    Electronic Resource
    Electronic Resource
    Springer
    Medical & biological engineering & computing 16 (1978), S. 623-632 
    ISSN: 1741-0444
    Keywords: Performance evaluation of drugs and cosmetics ; Skin impedance
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Chemistry and Pharmacology , Medicine
    Description / Table of Contents: Sommaire De nombreuses études ont déjà été effectuées sur les applications de la mesure de l'impédance aux variations de paramètres biologiques. La base de ces mesures est la différence due au facteur objectif entre l'impédance de référence (qui ne contient pas de facteur objectif) et l'impédance qui le contient. Dans le passé, les efforts ont surtout porté sur la relation entre le changement d'impédance de la peau et les facteurs objectifs tels que des maladies, et seules quelques études ont porté sur ce principe de mesure pour établir une impédance de référence en vue d'une méthode d'analyse de données. L'article propose: (a) une méthode pour la détermination d'un niveau de référence basée sur la transformation d'identité de l'impédance de la peau, (b) une théorie de transformation linéaire pour l'analyse des données et (c) le triangle exprimant le taux de changement des résultats obtenus, et il établit un principe de base des mesures. L'évaluation de performances de cosmétiques a été effectuée pour donner un exemple d'application du principe.
    Abstract: Zusammenfassung In den letzten Jahren wurden zahlreiche Untersuchungen der Anwendung von Hauptimpedanz auf biologische Messungen durchgeführt. Die Basis für dieses Veifahren ist, daß zwischen einer Referenzimpedanz und der Impedanz ein Unterschied entsteht. In der Vergangenheit wurde die Wichigkeit der Relation zwischen einer Veränderung in der Hautimpedanz und den objektiven Faktoren, wie Z.B. Krankheiten, betont, und es gibt nur wenige Studien über das Meßprinzip, die Bestimmung der Referenzimpedanz und Datenauswertungsmethode. (a) Eine Methode zur Festlegung eines auf der Identitätstransformation der Hautimpedanz basierenden Referenzniveaus, (b) lineare Transformationstheorie zur Datenanalyse und (c) ein Grundprinzip zum Messen wurden erarbeitet. Als Anwendungsbeispiel dieses Prinzips wurde eine Leistungsbewertung für Kosmetika durchgeführt.
    Notes: Abstract Numerous studies have been carried out on the application of skin impedance to biological measurement. Measurement is possible because a difference will result due to the objective factor of the impedance, and the reference impedance (which does contain the objective factor). Emphasis has been placed, in the past, on the relationship between the change in skin impedance and objective factors such as disease, and there are only a few studies on the principle of measurement as the establishment of a reference impedance and a data-analysis method. (a) A method for setting a reference level based on identity transformation of skin impedance, (b) linear-transformation theory for data analysis, and (c) rate of change triangle expression of the results obtained, are proposed, and a basic principle of measurement has been established. Performance evaluation of cosmetics was carried out as an example of the application of this principle.
    Type of Medium: Electronic Resource
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