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  • 1
    Electronic Resource
    Electronic Resource
    Springer
    Journal of molecular medicine 59 (1981), S. 355-363 
    ISSN: 1432-1440
    Keywords: Specific binding mechanisms ; Cellular receptors ; Hormone action ; Hormone resistance ; Receptor dysregulations ; Spezifische Bindungsmechanismen ; zelluläre Rezeptoren ; Hormonwirkungsmechanismen ; Hormonresistenz ; Rezeptordysregulation
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Description / Table of Contents: Zusammenfassung Die Charakterisierung der Bindungsparameter von Hormonen und Pharmaka an spezifischen Rezeptoren humaner Zelltypen haben zur Evaluierung von pathologischen Mechanismen geführt, die in die Entstehung von endokrinologischen und metabolischen Erkrankungen involviert sind. Die Fehlregulation zellulärer Rezeptoren bei solchen Erkrankungen äußern sich in Veränderungen der Rezeptorzahl, der Bindungsaffinität sowie in der Bildung von Antikörpern gegen Rezeptormoleküle. Aus der Darstellung dieser Vorgänge kann geschlossen werden, daß eine gestörte Rezeptorphysiologie möglicherweise für die Entgleisung zellulärer Erkennungsvorgänge und Kontrollmechanismen verantwortlich ist, die u.a. bei Neoplasien, Entzündungsreaktionen, Immunerkrankungen und Entwicklungsstörungen beobachtet werden.
    Notes: Summary The characterization of binding parameters of hormones and drugs to specific receptors at various human cell types have introduced an interesting approach for the evaluation of pathogenic mechanisms involved in endocrine and metabolic disorders. The dysregulation of cellular receptors in those disease include changes in receptor number, changes in binding affinity and production of antibodies against receptor molecules. It can be concluded from these observations that altered receptor physiology may be of important value for abnormalities in cellular recognition and control mechanisms which can be observed in neoplastic, inflammatory, immune and developmental diseases.
    Type of Medium: Electronic Resource
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  • 2
    Electronic Resource
    Electronic Resource
    Springer
    European journal of clinical pharmacology 41 (1991), S. 297-301 
    ISSN: 1432-1041
    Keywords: Vasoconstriction ; cyclosporin A ; vascular smooth muscle cells ; cytosolic free calcium ; cell proliferation ; phosphoinositide turnover ; cyclosporin A-induced hypertension ; PDGF ; adverse effect
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology , Medicine
    Notes: Summary Pretreatment of rat vascular smooth muscle cells with cyclosporin A caused concentration- and time-dependent enhancement of both angiotensin II- and platelet-derived growth factor-stimulated cellular functions, which may be related to a rise in vascular tone. In particular, cyclosporin A increased cytosolic free calcium, and augmented the agonist-induced formation of inositol polyphosphate. In addition, it markedly increased the sensitivity of the cells to platelet-derived growth factor-mediated stimulation of thymidine incorporation. The potentiation of vascular smooth muscle cell activity by cyclosporin A may be a novel mechanism by which it exerts an adverse vasoconstrictor effect.
    Type of Medium: Electronic Resource
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  • 3
    Electronic Resource
    Electronic Resource
    Springer
    Crop science 38 (1998), S. 1229-1235 
    ISSN: 1435-0653
    Source: Springer Online Journal Archives 1860-2000
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
    Notes: Gylcine max (L.) Merr.] seed under tropical conditions can lead to deterioration that affects product taste and color. A study was designed to assess the effect of extreme storage conditions on the degradation of soluble sugars and to relate these changes to seed deterioration. Seed of six cultivars of soybean were stored for 9 mo. under control (4°C, 45% RH) and simulated tropical (30°C, 82% RH) conditions. Soluble sugar metabolism was monitored by high performance anion exchange chromatography coupled to pulsed amperometric detection (HPAE-PAD). Soluble sugar content was constant or only slightly affected under control conditions. However, substantial hydrolysis of stachyose, raffinose, and verbascose occurred under simulated tropical conditions. The resulting release of glucose and galactose, combined with the degree of hydrolysis of oligosaccharides, appears to be strongly linked to soybean seed quality as indicated by seed germination. Storage behavior was cultivar dependent, pointing to the importance of selecting cultivars for storability in tropical countries. Determination of glucose seems to be a sensitive analytical and practical tool for monitoring soybean seed quality and deterioration under extreme climatic conditions.
    Type of Medium: Electronic Resource
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