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  • 1
    Electronic Resource
    Electronic Resource
    Springer
    Journal of molecular medicine 51 (1973), S. 207-213 
    ISSN: 1432-1440
    Keywords: Function and physico-chemical properties of proteoglycans ; dermatological diseases ; Stellung ; Funktion ; physiko.-biochem ; Eigenschaften der Proteoglycane in der Dermatologie
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Description / Table of Contents: Zusammenfassung Die Ergebnisse moderner Bindegewebsforschungen zwingen zu einer Überprüfung und Neuorientierung älterer pathogenetischer Vorstellungen. In einer Übersicht sollte versucht werden, den Stellenwert der Proteoglycane (PG) — ältere Bezeichnung Mucopolysaccharide (MPS) — im dermatologischen Bereich an Beispielen zu beleuchten. Hierbei kommt den PG im Rahmen des Sklerodermieproblems eine besondere Bedeutung zu (Matritzenfunktion).
    Notes: Summary Proteoglycans—high molecular polysaccharide-protein-complex compounds—are very important in vital intracellular and extracellular metabolic functions. Disturbances of their regulatory mechanisms are followed by an increase of their rate of biosynthesis. This obviously causes a partially irreversible damage in the connective tissue of the skin which is clinically and morphologically visible in a number of dermatological diseases. The importance of these macro-molecular structures and their metabolism is described in detail, especially as regards progressive scleroderma. The results of the most recent experiments lead cogent reason to abandon the former hypothesis that the mesenchymal cells possess a low metabolism.
    Type of Medium: Electronic Resource
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  • 2
    Electronic Resource
    Electronic Resource
    Springer
    Journal of molecular medicine 61 (1983), S. 63-65 
    ISSN: 1432-1440
    Keywords: Superoxide dismutase ; Lipid peroxidation ; Seminal plasma ; Superoxide radicals
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Summary Amounts of Copper/zinc containing superoxide dismutase have been found in human seminal plasma. Superoxide dismutase inhibits the lipid peroxidation in the xanthine oxidase system. In seminal plasma of spermatozoa with a good motility the superoxide dismutase activity is higher than in those with a low motility.
    Type of Medium: Electronic Resource
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  • 3
    Electronic Resource
    Electronic Resource
    Springer
    Journal of molecular medicine 51 (1973), S. 214-221 
    ISSN: 1432-1440
    Keywords: Biosynthesis ; autoradiographic studies ; glycosaminoglycans ; human dermis ; scleroderma ; Biosynthese ; autoradiographische Untersuchungen ; Glycosaminoglycane ; menschliche Haut ; Sklerodermie
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Description / Table of Contents: Zusammenfassung In Hautschnitten von 16 Gesunden und 10 Patienten mit progressiver Sklerodermie wurde die Biosynthese von Glycosaminoglycanen (GAG) und Proteinen mit Hilfe autoradiographischer, histochemischer und radiobiochemischer Methoden in vitro unter aeroben und anaeroben Bedingungen untersucht. Die Autoradiographie mit radioaktiven Vorstufen der Sulfopolysacharid- (35SO4,3H-Glucosamin) und Proteinbiosynthese (3H-Prolin) indizierte deren Lokalisation in Epithelund Coriumzellen. Die Einbauraten aller 3 Vorstufen waren in der Haut von Sklerodermiepatienten 2- bis 20fach gegenüber Kontrollen gesteigert. Die Auszählung der Silberkörner pro 1000 Zellen läßt folgende Einbauverhältnisse im Corium zu Stratum spinosum zu Stratum basale für35SO4 erkennen: Kontrollen: 2,7:2,1:1,0, Sklerodermie: 12,3:2,7:1,0; für3H-Glucosamin: Kontrollen: 8,3:3,2:1,0, Sklerodermie: 22,0:5,6:1,0; für3H-Prolin: Kontrollen: 21,1:7,2:1,0, Sklerodermie: 15,6:3,4:1,0. Die in der Haut von Sklerodermiepatienten histochemisch nachweisbar vermehrte Ablagerung saurer und sulfatierter GAG stand in guter Korrelation mit den autoradiographisch nachweisbaren Syntheseorten (Stratum spinosum, Coriumbindegewebszellen, Hautanhangsgebilde, Gefäßwände). Damit kommen als Syntheseort von GAG Zellen ektodermalen und mesenchymalen Ursprungs in Frage. Die radiobiochemische und Infrarot-Spektralanalyse des Syntheseproduktes von Hautzellen zeigte bei Gesunden eine Sulfopolysaccharidfraktion mit überwiegend am C4- weniger am C6-Atom veresterten Sulfatgruppen, bei Sklerodermiepatienten eine Zunahme der am C6-Atom veresterten Sulfatgruppen. Der Uronsäuregehalt dieser Fraktion nahm in der Haut von Sklerodermiepatienten 4,4fach zu. Die spez. Radioaktivität (IpM/µMol Uronsäure) von Sulfatestergruppen, Hexosaminen und3H-Prolin war bei Sklerodermiepatienten gegenüber Kontrollen um 3-, 1,1- bzw. 1,9fach erhöht. Hieraus wird auf eine bevorzugte Neubildung von Sulfopolysacchariden in der Haut von Sklerodermiepatienten geschlossen. Radioaktive Einbauraten, anaerobe Glycolyserate und Hexosaminausscheidung im Urin zeigen eine vom Krankheitsverlauf abhängige Steigerung.
    Notes: Summary The biosynthesis of glycosaminoglycans and proteins was studied in skin slices of 16 healthy subjects and 10 patients with progressive skleroderma, using autoradiographic, histochemical and radiobiochemical methods in vitro under aerobic and anaerobic conditions. The sulphopolysaccharide and protein biosynthesis was localized autoradiographically in the cells of the epithelium and of the corium using35SO4 and3H-glucosamine as precursors of the sulphopolysaccharide biosynthesis and3H-proline as a precursor of the proteinbiosynthesis. Incorporation rates of these 3 precursors were 2 to 20 times higher in the skin of patients than in that of controls. The following proportions of the incorporation rates (silver grains per 1000 cells) were found for35SO4 incorporation in controls: corium to stratum spinosum to stratum basale as 2.7:2.1:1.0; in patients 12.3:2.7:1.0; for3H-glucosamine in controls 8.3:3.2:1.0 and in patients 22.0:5.6:1.0; for3H-proline in controls 21.0:7.2:1.0 and in patients 15.6:3.4:1.0. An increased deposition of acid and sulphated glycosaminoglycans was demonstrated with histochemical methods in the skin of patients with progressive skleroderma. It correlated well with the spots of glycosaminoglycan biosynthesis as shown autoradiographically in human skin (stratum spinosum, cells in corium and in wall of little vessels, perifollicular space). These findings evidenced a biosynthesis of glycosaminoglycans taking place in cells of ectodermal as well as of mesodermal origin. Radiobiochemical and infrared analysis of the in vitro synthesized product of human skin cells of healthy persons indicated a sulphopolysaccharide fraction exhibiting mainly C4- (less C6-) esterified sulphate groups whereas a relative increase of C6-esterified sulphate groups was found in patients with skleroderma. The content of uronic acid grew up to the 4.4fold in the skin of patients. The specific radioactivity (IpM/µmole uronic acid) of sulphate ester groups, radioactive hexosamine and proline residues increased to 3-, 1.1- and 1.9fold in patients compared to controls. The incorporation rate of radioactive precursors, the rate of anaerobic glycolysis and the excretion of hexosamine in urine depended on the malignancy of skleroderma.
    Type of Medium: Electronic Resource
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  • 4
    Electronic Resource
    Electronic Resource
    Springer
    Journal of molecular medicine 52 (1974), S. 185-189 
    ISSN: 1432-1440
    Keywords: Pathogenesis of Darier-Grönland-Strandberg syndrome ; collagen-like protein ; free hydroxyproline ; total hydroxyproline in urine ; collagen proline hydroxylase activity ; glycosaminoglycans ; Pathogenese des Darier-Grönblad-Strandberg-Syndroms „Collagen-like protein“, freies Hydroxyprolin ; Kollagenprolinhydroxylaseaktivität ; Glykosaminoglykane. Gesamthydroxyprolin im Urin
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Description / Table of Contents: Zusammenfassung Pathogenetische Fragen zum Darier-Grönblad-Strandberg-Syndrom werden anhand biochemischer Untersuchungsergebnisse an einem Krankengut von 31 klassischen Fällen diskutiert. Es ergaben sich krankheitsspezifische Abweichungen von der Norm sowohl im Stoffwechsel des Kollagens als auch der Glykosaminoglykane. Die entsprechenden Parameter: 1. Konzentration des „collagen-like protein“ im Plasma, des freien Hydroxyprolins im Plasma, Gesamthydroxyprolinausscheidung mit dem Urin, Aktivität der Kollagenprolinhydroxylase in Serum und Haut, 2. Hexuronsäure-und Hexosaminausscheidung mit dem Urin, Glykosaminoglykanfraktionen im Urin — waren mit Ausnahme der Kollagenprolinhydroxylaseaktivität signifikant von den Meßwerten bei altersentsprechenden Gesunden verschieden. Wieweit sich hierbei Kollagen- und Glykosaminoglykanstoffwechsel gegenseitig beeinflussen, muß vorerst offen bleiben, ebenso die Frage nach dem Primärdefekt. Nach dem Vererbungsmodus ist dieser wahrscheinlicher in einem Enzymmangel als in der Bildung eines abnormen Genprodukts zu vermuten.
    Notes: Summary The Pathogenesis of Darier-Grönblad-Strandberg syndrome is discussed in relation to biochemical data of 31 patients with classical features. Specific deviations from normal values were found as to the metabolism as well of collagen as glycosaminoglycans. The corresponding parameters: 1. Collagen-like protein in plasma, free hydroxyproline in plasma, activity of collagen proline hydroxylase in serum and skin, total hydroxyproline in urine, 2. hexuronic acid and hexosamine excretion in the urine, glycosaminoglycan fractions in urine—except the collagen proline hydroxylase activity—were significantly different from the values of corresponding age-matched healthy control persons. Interaction of collagen and glycosaminoglycans is not clear, the primary defect is unknown. Hereditary trait suggests rather an enzyme deficiency than an abnormal gen product.
    Type of Medium: Electronic Resource
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  • 5
    Electronic Resource
    Electronic Resource
    Springer
    Journal of molecular medicine 54 (1976), S. 881-887 
    ISSN: 1432-1440
    Keywords: Tryptophan load ; Tryptophan metabolism ; In controls and progressive scleroderma ; DL-Tryptophan ; Tryptophan-Metabolismus ; Kontrollen-progressive Sklerodermic
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Description / Table of Contents: Zusammenfassung An einem Krankengut der progressiven Sklerodermie (n=11) gegenüber Kontrollen (n=10) wurden im 24 h-Urin vor, unter und nach der Belastung mit 5 g DL-Tryptophan 7 Metaboliten des Tryptophanabbaues (Kynurenin, 3-Hydroxyanthranilsäure, Xanthurensäure, 5-Hydroxyindolessigsäure, Indol-3-Essigsäure, N-Methylnicotinamid, Tryptamin) quantitativ bestimmt. Die 24 h-Ausscheidungen von 5-Hydroxyindolessigsäure und Indol-3-Essigsäure waren gegenüber dem Kontrollkollektiv signifikant erhöht. Ein Rückgang der Ausscheidung von 5-Hydroxyindolessigsäure nach Belastung bei Kontrollen deutet die Möglichkeit einer autonomen Regulation des Serotoninstoffwechsels sowie eine Störung der Regulation bei Sklerodermiepatienten an. Ein Versuch, unsere Ergebnisse denen bisher dem Schrifttum vorliegenden Untersuchungsbefunden gegenüberzustellen, ist aus methodentechnischen Gründen nicht durchführbar gewesen.
    Notes: Summary This presentation describes effects of oral tryptophan loading (5.0 g DL) on tryptophan metabolism in healthy subjects (n=10) and persons with progressive scleroderma. N1-methylnicotinamide (N1MN), 3-hydroxyanthranilic acid (3 HAA), kynurine (KN), tryptamin (TA), xantheurenic acid (XA) were determinated. Alterations of tryptophan metabolism were evaluated by 24 h urinary excretions of the following metabolites: 5-hydroxy indolacetic acid (5 HAA) and indole-3-acetic acid (IAA). The pathological pathways were discussed, especially the way and influence of serotonine.
    Type of Medium: Electronic Resource
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  • 6
    Electronic Resource
    Electronic Resource
    Springer
    Journal of molecular medicine 42 (1964), S. 1087-1093 
    ISSN: 1432-1440
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Description / Table of Contents: Summary In 7 patients with dermatomyositis the creatine decomposition test was performed. Significant differences of the creatine and creatinine levels in blood serum and urine could be observed compared with controls. The diagnostic value of the test is discussed. Der Fa. Boehringer, Mannheim, gilt für die Überlassung der Ferment-Test-Kombinationen unser Dank.
    Notes: Zusammenfassung An einem Krankengut von sieben Dermatomyositis-Patienten (fünf Frauen, zwei Männer) wurden Kreatin-Belastungen durchgeführt. Die vergleichenden Kreatin- und Kreatinin-Bestimmungen im Serum und Urin ließen unter entsprechenden Versuchsbedingungen signifikante Unterschiede im Serum (Hyperkreatinämie) und Urin (Hyperkreatinurie — verminderte Kreatininausscheidung) gegenüber Normalpatienten erkennen. Unter Berücksichtigung des Schrifttums wurde der diagnostische Wert dieser Belastung diskutiert. Gleichzeitig wurde unter der Belastung die Serumaktivitäten für LDH, Aldolase, CPK bestimmt. Signifikante Unterschiede konnten nur für LDH und CPK ermittelt werden, jedoch waren diese nicht so eindeutig wie in den Kreatin-Kreatinin-Versuchen.
    Type of Medium: Electronic Resource
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  • 7
    Electronic Resource
    Electronic Resource
    Springer
    Archives of dermatological research 275 (1983), S. 301-304 
    ISSN: 1432-069X
    Keywords: Psoriasis ; Complement ; C2 ; Factor B ; Polymorphism ; HLA
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Summary Starting from the known association between psoriasis and several HLA antigens and from the fact that the HLA chromosomal region contains the structural genes for at least three complement components, the authors have looked for an association between psoriasis and allotypes of C2 and BF. C2 and BF polymorphism were examined in 230 psoriatic patients. Two rare complement genes were found to be significantly increased when compared with controls: the frequency of the C2 *2 gene was 0.061 among patients and 0.035 among controls (P〈0.05); for BF *SO7, the frequencies were 0.0304 in patients and 0.0092 in controls (P〈0.0005). The BF *F gene frequency, however, was significantly decreased among patients: 0.1196 vs. 0.1743 (P〈0.01). The relative risks were 1.79 for the C22, 3.44 for the BF SO7, and 0.6 for the BFF gene product. From previous studies, it is known that these three complement alleles (C2 *2, BF* SO7, BF *F) are in linkage disequilibrium with HLA alleles that have also been found increased or decreased, respectively, in psoriasis.
    Type of Medium: Electronic Resource
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  • 8
    Electronic Resource
    Electronic Resource
    Oxford, UK : Blackwell Publishing Ltd
    British journal of dermatology 85 (1971), S. 0 
    ISSN: 1365-2133
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Medicine
    Notes: Summary.— This paper deals with the pathogenesis and the microscopic and cytological features of the pemphigus group of diseases. The immunological aspects of acantholysis are discussed. The statement by several authors that pemphigus is an autoimmune disease is questioned and evidence from the literature against this hypothesis is cited.
    Type of Medium: Electronic Resource
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  • 9
    Electronic Resource
    Electronic Resource
    Oxford, UK : Blackwell Publishing Ltd
    Journal of cutaneous pathology 15 (1988), S. 0 
    ISSN: 1600-0560
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Medicine
    Notes: The monoclonal antibody anti-Leu 19 recognizes the NKH-1 antigen of active natural killer cells. In immunohistological preparations of the skin, the antibody reacts with cutaneous nerves and labels nerve fibers in the region of the sweat glands, the blood vessels and the hair arrector muscles. This staining pattern corresponds to the distribution of the autonomic sympathetic nervous system of the skin. On the other hand, anti-Leu 7 labels a myelin-associated glycoprotein which is to be found in the myelin-sheath of sensory cutaneous nerves. The reactivity of neural structures of the skin can thus be differentiated. Anti-Leu 7 labels the myelinated sensory nervous system, whereas anti-Leu 19 seems to constitute a new marker for the autonomic nervous system of the skin.
    Type of Medium: Electronic Resource
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  • 10
    Electronic Resource
    Electronic Resource
    Springer
    Der Hautarzt 45 (1994), S. 885-886 
    ISSN: 1432-1173
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Type of Medium: Electronic Resource
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