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  • 11
    Electronic Resource
    Electronic Resource
    Springer
    Archives of dermatological research 266 (1979), S. 181-185 
    ISSN: 1432-069X
    Keywords: Radioimmunoassay ; Dehydroepiandrosterone ; Androstene-diol ; Psoriasis ; Radioimmunologische Bestimmung ; Dehydroepiandrosteron ; Androstendiol ; Psoriasis
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Description / Table of Contents: Zusammenfassung Mittels radioimmunologischer Bestimmungsverfahren wurden die Steroide Dehydroepiandrosteron und 5-Androsten-3ß,17ß-diol im Plasma von Psoriatikern und Kontrollpersonen bestimmt. Entsprechend den bereits früher mit photometrischen Methoden erhobenen Befunden war bei den Psoriatikern der Plasma-Spiegel des Dehydroepiandrosterons erniedrigt und der des Androstendiols erhöht.
    Notes: Summary In the plasma of psoriatics and controls the steroids dehydroepiandrosterone and 5-androstene-3ß,17ß-diol were determined by radioimmunoassay. Corresponding earlier findings obtained by photometric methods in psoriatics the plasma level of dehydroepiandrosterone is increased and that of androstenediol is decreased.
    Type of Medium: Electronic Resource
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  • 12
    Electronic Resource
    Electronic Resource
    Springer
    Archives of dermatological research 277 (1985), S. 131-137 
    ISSN: 1432-069X
    Keywords: Alcohol ; Respiratory burst ; Chemotaxis ; Lysosomal enzymes ; Phagocytes
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Summary Although a number of skin diseases are characterized by the presence of an increased number of phagocytes in their lesions, the effects of alcohol on phagocytic functions are not clearly understood. Therefore, we measured the influence of ethanol and acetaldehyde on the generation of oxygen radicals, chemotaxis and the release of lysosomal enzymes from human phagocytes. We added 0.03%–3% ethanol and 0.005%–0.25% acetaldehyde to cell cultures. We found that both ethanol and acetaldehyde suppressed the generation of oxygen radicals from granulocytes and monocytes; the ID50 was achieved at concentrations of approximately 0.25% for ethanol and 0.03% for acetaldehyde. A significant inhibition of granulocyte chemotaxis was first noted with 0.063% ethanol and 0.016% acetaldehyde. Ethanol and acetaldehyde inhibited the release of the lysozyme of monocytes at concentrations of 〉0.75% and 〉0.03% respectively, but granulocytes were unaffected; the release of β-glucuronidase and lactate dehydrogenase remained stable. Due to the high volatility of the agents, especially acetaldehyde, under the experimental procedures employed, the actual concentrations of the agents were probably lower and similar to those measured in vivo. Our results indicate that defined phagocytic functions are strongly inhibited by concentrations of ethanol and acetaldehyde which are associated with moderate to severe inebriation.
    Type of Medium: Electronic Resource
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  • 13
    Electronic Resource
    Electronic Resource
    Springer
    Archives of dermatological research 272 (1981), S. 97-101 
    ISSN: 1432-069X
    Keywords: Steroid hormone receptors ; Human melanoma
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Summary Human melanomas were investigated for the presence of highaffinity estrogen-, gestagen-, and glucocorticoid-binding proteins. A statistically significant difference was found for mean estrogen receptor (ER) concentrations in melanomas of male versus female origin: female origin 37.6 (0–107) fmol/mg protein, male origin 3.9 (0–8.3) fmol/mg protein. No significant difference between sexes was found for gestragen receptors: 41.5 (0–194) fmol/mg protein for melanomas of female origin versus 99 (0–362) fmol/mg protein for male. Sucrose density gradient analyses revealed specific binding for both receptor types in the 4–5 S region as well as in the 8 S region. The binding affinities were in the same order of magnitude as reported for receptors found in typical steroid target organs. No significant difference in receptor values depending on sex was found for the glucocorticoid receptor: 19.2 (0–43) fmol/mg protein.
    Type of Medium: Electronic Resource
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  • 14
    Electronic Resource
    Electronic Resource
    Springer
    Archives of dermatological research 243 (1972), S. 18-30 
    ISSN: 1432-069X
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Description / Table of Contents: Zusammenfassung Erythrocyten von 8 Psoriatikern und 8 Kontrollpersonen wurden in vitro mit3H-markiertem freiem DHEA, DHEA-sulfat und DHEA-sulfatid inkubiert. Es zeigte sich, daß die Penetration von DHEA und DHEA-sulfatid durch die Erythrocytenmembran bei Psoriasis um ca. 50% vermindert ist. Im Erythrocyten des Psoriatikers ließ sich, insbesondere nach Inkubation mit DHEA-sulfatid, eine vermehrte Reduktion von DHEA zum ADIOL feststellen. Weiterhin ergab sich eine statistisch erfaßbare Beziehung zwischen dem DHEA-Gehalt im Erythrocyten und seiner Hemmung der G-6-PDH. Die Bedeutung dieser Befunde für den Entstehungsmechanismus des DHEA-Mangels bei der Psoriasis vulgaris wird diskutiert.
    Notes: Summary Erythrocytes of 8 psoriatics and 8 controls were incubated in vitro with3H-labeled free DHEA, DHEA-sulfate and DHEA-sulfatide. It could be demonstrated that in psoriasis the penetration of DHEA and DHEA sulfatide through the membrane of erythrocytes is reduced by approximately 50%. Within the erythrocytes of psoriatic patients an augmented reduction of DHEA to ADIOL was found, especially after incubation with DHEA sulfatide. Furthermore, a statistically defined correlation could be observed between the DHEA content of erythrocytes and the inhibition of red blood cell glucose-6-phosphate dehydrogenase. The significance of these findings for the pathogenesis of a DHEA deficiency in psoriasis is discussed.
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  • 15
    Electronic Resource
    Electronic Resource
    Springer
    Archives of dermatological research 240 (1971), S. 204-211 
    ISSN: 1432-069X
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Description / Table of Contents: Zusammenfassung Die Bestimmung von DHEA, Androsteron und Ätiocholanolon sowie Androstendion und Testosteron im Harn 6 männlicher und 6 weiblicher Psoriatiker vor und nach 4wöchiger Gabe von täglich 20 mg DHEA-Sulfat ergab bereits vor der Behandlung eine bemerkenswert niedrige Ausscheidung dieser C19-Steroide. Obgleich die Behandlung mit DHEA-Sulfat zu einem Anstieg der Harnkonzentrationen besagter Steroide führte, wurden bei den 3 erstgenannten Steroiden die Normalwerte entsprechend behandelter Vergleichspersonen in keinem Fall erreicht. Solche Befunde deuten auf einen veränderten Stoffwechsel des verabreichten (und auch des endogenen) sulfokonjugierten DHEA's hin.
    Notes: Summary The estimation of DHEA, androsterone, etiocholanolone as well as of androstenedione and testosterone in urine of 6 male and 6 female patients with psoriasis before and after daily treatment with 20 mg DHEA-sulfate revealed a remarkably low excretion of these C19-steroids. Although treatment with DHEA-sulfate resulted in an increase of the urinary levels of these steroids, the excretion rates of the first three steroids mentioned above remained always lower as compared to controls under the same conditions. These results point towards an altered metabolism of the administered (and also of endogenous) sulfoconjugated DHEA.
    Type of Medium: Electronic Resource
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  • 16
    Electronic Resource
    Electronic Resource
    Springer
    Archives of dermatological research 231 (1968), S. 329-334 
    ISSN: 1432-069X
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Description / Table of Contents: Zusammenfassung Eine Erhöhung von Hauptkettenenzymen sowie eine Verschiebung der LDH-Isoenzyme im Serum von Kranken mit Psoriasis vulgaris läßt eine Leber- bzw. Muskelbeteiligung vermuten. Die Bestimmung der weitgehend leberspezifischen Enzyme Alkohol-Dehydrogenase, Sorbit-Dehydrogenase und Glutamat-Dehydrogenase wie auch ein Vergleich der Enzymverteilungsmuster von normaler Leber und Psoriatiker-Serum lassen keine der Schuppenflechte korrelierte Leberstörung erkennen.
    Notes: Summary An increase of the enzymes of the main metabolic pathways and a shifting of the LDH-isoenzymes in the serum of patients with psoriasis vulgaris is taken as a hint to the participation of the liver respectively of the skeletal muscular system. The determination of the mainly liver specific enzymes alcohol dehydrogenase, l-iditol dehydrogenase and glutamate dehydrogenase and also a comparison of the enzyme distribution pattern of normal liver and serum of patients with psoriasis vulgaris suggest no disorder of the liver correlated to this disease.
    Type of Medium: Electronic Resource
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  • 17
    Electronic Resource
    Electronic Resource
    Springer
    Archives of dermatological research 231 (1968), S. 335-343 
    ISSN: 1432-069X
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Description / Table of Contents: Zusammenfassung Zur Klärung der bereits mehrfach beschriebenen Hyperfermentie im Serum von Kranken mit Psoriasis vulgaris wurden bei solchen Krankheitsträgern verschiedene weitere Hauptkettenenzyme und muskelspezifische Enzyme bestimmt. Eine Steigerung der Fermentaktivitäten fand sich bei der Hexokinase, Phosphoglucomutase, Phosphohexokinase, Triosephosphat-Isomerase, Phosphoglyceromutase, Glutamat-Pyruvat-Transaminase und Myokinase. Jedoch entsprach das Enzymverteilungsmuster der Hauptkettenenzyme im Serum nicht dem der Herz-oder Skeletmuskulatur. Trotzdem deutet die Erhöhung der Myokinase unter Berücksichtigung unserer früheren Mitteilungen auf die Herkunft aus der Skeletmuskulatur hin. Die Erhöhung von Hauptkettenenzymen im Serum bei Kranken mit Psoriasis vulgaris ist letztlich auch auf das Vorliegen einer psoriatischen Myopathie zu beziehen.
    Notes: Summary For the interpretation of the already repeatedly described increase of enzymes of the main metabolic pathways in the serum of patients with psoriasis vulgaris several other such enzymes and also muscle specific enzymes have been determinated. An increase of the activities of following enzymes could be detected: hexokinase, phosphoglucomutase, phosphohexokinase, triosephosphate isomerase, phosphoglyceromutase, alanine aminotransferase and adenylate kinase. However, the distribution pattern of the enzymes of the main metabolic pathways in the serum did not correlate to that of the cardiac or sceletal muscular system. Nevertheless the increase of adenylate kinase with regard to our other publications referring to this point at the origin from the sceletal muscular system. The increase of enzymes of the main metabolic pathways in the serum of patients with psoriasis vulgaris at last is to relate to the myopathia psoriatica.
    Type of Medium: Electronic Resource
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  • 18
    Electronic Resource
    Electronic Resource
    Springer
    Archives of dermatological research 245 (1972), S. 95-109 
    ISSN: 1432-069X
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Description / Table of Contents: Zusammenfassung Bei 13 Psoriatikern und 11 gesunden Kontrollpersonen wurden der orale und der i.v. Glucosetoleranztest durchgeführt sowie die Glucoseinduzierte Insulinsekretion bestimmt. Dabei ergab sich bei oraler Glucosebelastung eine eindeutige Verzögerung der Glucoseassimilation, während sich bei der i.v. Glucosebelastung statistisch keine Unterschiede in den Blutzuckerkurven der beiden Kollektive erfassen ließen. Die Insulinwerte lagen bei den Psoriatikern bereits vor Durchführung der Belastungstests „statistisch auffällig“ über denen der Kontrollpersonen. Auch nach oraler und i.v. Glucosebelastung war der Serum-Insulinspiegel der Psoriatiker jeweils eindeutig erhöht, wobei die entsprechenden Insulinkurven denen der Kontrollpersonen weitgehend parallel liefen. Als Ursache der eingeschränkten Glucosetoleranz sowie des Hyperinsulinismus wird in erster Linie die durch den Dehydroepiandrosteron-Mangel bedingte vermehrte Umsatzrate im Pentose-Phosphat-Cyclus angenommen. Weiterhin müssen eine Steigerung der Gluconeogenese, Störungen im Substrattransport durch die Membranen sowie ein beschleunigter peripherer Insulinabbau diskutiert werden. Sicher sind sowohl diese Mechanismen als auch die dadurch bedingte veränderte Glucosetoleranz und Insulinsekretion nur die Folge einer übergeordneten Störung, nämlich des beim Psoriatiker zu beobachtenden DHEA-Mangels.
    Notes: Summary In 13 psoriatic patients and 11 normal controls the oral and intravenous glucose tolerance test was performed and the glucose-induced insulin secretion determined. In case of oral glucose administration a distinct delay of glucose assimilation was observed, whereas the intravenous glucose administration did not lead to differences between the curves of blood glucose in both groups. Before the glucose tolerance tests were started the insulin levels of psoriatics exceeded those of the controls (p ≦ 5%). Also after oral and intravenous administration of glucose the levels of insulin in serum of psoriatics proved to be increased, the curves of serum insulin paralleling those of the controls. The limited glucose tolerance and the hyperinsulinism may be attributed to an augmented metabolic rate of the pentose-phosphate cycle, caused by a deficit in dehydroepiandrosterone. Furthermore, an increase in gluconeogenesis, disturbancies in substrate transport through membranes and an accelerated metabolism of insulin are discussed. Such mechanisms, as well as the resulting changes in the glucose tolerance and the insulin secretion seem to represent only the result of the primary defect, namely the lack of dehydroepiandrosterone in psoriatics.
    Type of Medium: Electronic Resource
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  • 19
    Electronic Resource
    Electronic Resource
    Springer
    Archives of dermatological research 244 (1972), S. 116-116 
    ISSN: 1432-069X
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Type of Medium: Electronic Resource
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  • 20
    Electronic Resource
    Electronic Resource
    Springer
    Archives of dermatological research 247 (1973), S. 23-28 
    ISSN: 1432-069X
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Description / Table of Contents: Zusammenfassung Über eine systemische Behandlung der Psoriasis mit 200 mg DHEA-Oenanthat war berichtet worden. Bei Erhöhung der Dosis auf 300 mg/Woche und verlängerter Anwendung ergibt sich ein Wirkungsabfall des Therapieeffektes, der sowohl klinisch wie biochemisch erfaßbar ist. Trotzdem erscheinen weitere Untersuchungen mit dem in der verwendeten Dosierung ohne negative „Nebenwirkungen“ belasteten DHEA angezeigt, greift es doch bei normalen und pathologisch proliferierenden Zellen und Geweben in den Mitosemechanismus ein. Gerade ein solcher therapeutischer Effekt muß bei der Schuppenflechte gefordert werden.
    Notes: Summary Results on systemic weekly treatment of psoriasis with 200 mg DHEA-enanthate have previously been reported. Increasing and prolonging the weekly dosage shows a decrease of the therapeutical effect. This is demonstrated clinically as well as biochemically. Despite these findings further investigations with the applied dosages of DHEA resp. its enanthate, lacking any negative side effects are necessary. Since DHEA is involved in the process of mitosis of proliferating normal and pathological cells and tissues, a therapeutic effects as such would be required in psoriasis.
    Type of Medium: Electronic Resource
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