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  • 1
    ISSN: 1432-1440
    Keywords: Basement membranes ; 7S Collagen ; Laminin P1 ; Diabetes mellitus
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Summary Specific radioimmunoassays were used to quantify two basement membrane components, 7S collagen and laminin P1, in sera of 70 patients suffering from diabetes mellitus types I and II with and without clinical signs of chronic diabetic complications. Serum levels of both antigens were increased in diabetics compared to controls (p〈0.001). Concentrations of 7S collagen were significantly different in diabetics with signs of microvascular damage compared to those without small vessel disease (p〈0.05). The difference between laminin P1 concentrations in the two groups of diabetics was not significant (p〈0.2). The augmented levels of circulating 7S collagen and laminin P1 may reflect alterations of basement membrane metabolism. Thus, the measurement of concentrations of these basement membrane components in serum may be a useful tool for monitoring the development of chronic diabetic complications.
    Type of Medium: Electronic Resource
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  • 2
    ISSN: 1432-1963
    Keywords: Schlüsselwörter Adulte Riesenzellhepatitis ; Hepatitis A ; Antinukleäre Antikörper ; Leberdystrophie ; Lebertransplantation ; Key words Adult giant cell hepatitis ; Hepatitis A ; Antinuclear antibodies ; Hepatic dystrophy ; Liver transplantation
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Description / Table of Contents: Summary The occurrence of plasmodial giant cells in the liver is probably a morphological reaction pattern with the most diverse causes. In babies and infants, these changes occur in particular in neonatal hepatitis and intrahepatic and extrahepatic bile duct atresia. Viral infections and/or autoimmune reactions are discussed etiologically in giant cell hepatitis in adults (adult giant cell hepatitis, AGCH), which is much rarer. In some of the cases, there were conspicuously high titers against paramyxoviruses. Giant cell hepatitis can occur in the course of HIV infection. These both indicate an infectious cause. However, the disease cannot be transmitted to chimpanzees. Apart from our case, only one further case is described in the literature in which a completed hepatitis A infection could be demonstrated serologically. In addition, the titer of antinuclear antibodies was raised in our patient. This autoimmune phenomenon is probably of crucial pathogenetic significance in our patient, especially since a hepatitis A infection on its own does not afford an adequate etiological explanation for the form of chronic and active hepatitis with consecutive cirrhotic transformation observed here.
    Notes: Zusammenfassung Das Auftreten plasmodialer Riesenzellen in der Leber entspricht wahrscheinlich einem morphologischen Reaktionsmuster unterschiedlichster Ursachen. Bei Säuglingen und Kleinkindern treten diese Veränderungen insbesondere bei der neonatalen Hepatitis und bei intra- oder extrahepatischen Gallengangsatresien auf. Ätiologisch werden bei der viel selteneren Riesenzellhepatitis des Erwachsenen (adulte Riesenzellhepatitis, aRZH) virale Infektionen und/oder Autoimmunreaktionen diskutiert. Für eine infektiöse Ursache spricht, daß bei mehreren Fällen auffällig hohe Titer gegen Paramyxoviren nachweisbar waren und daß die Riesenzellhepatitis im Verlauf einer HIV-Infektion auftreten kann. Die Erkrankung ist allerdings auf Schimpansen nicht übertragbar. In der Literatur ist bisher nur eine Riesenzellhepatitis beschrieben worden, bei der eine durchmachte Hepatitis-A-Infektion serologisch nachweisbar war. Der von uns beschriebene Fall zeigte zusätzlich einen erhöhten Titer antinukleärer Antikörper. Wahrscheinlich kommt diesem Autoimmunphänomen eine entscheidende pathogenetische Bedeutung zu, insbesondere deshalb, weil nach dem heutigen Kenntnisstand für die chronische aktive Hepatitis mit zirrhotischem Umbau eine Hepatitis-A-Infektion keine ausreichende ätiologische Erklärung bietet.
    Type of Medium: Electronic Resource
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  • 3
    Electronic Resource
    Electronic Resource
    Springer
    Digestive diseases and sciences 32 (1987), S. 1075-1081 
    ISSN: 1573-2568
    Keywords: ultrasonography ; pancreatic duct ; secretin test ; chronic pancreatitis
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract The pancreatic duct or at least parts of this structure can be demonstrated today by sonography in 75–85% of all persons examined. In 84 persons we have now measured the caliber of the sonographically visualized pancreatic duct in the region of the proximal body of the pancreas with special attention to dependence on age. The diameter of Wirsung's duct ranged from 1 to 3 mm (mean 1.9 mm) and increased significantly from the fifth decade of life onwards. After intravenous injection of the hormone secretin, healthy persons usually show a distinct duct enlargement, which also depends on age. Nine persons aged 19 through 35 (median 28) years showed a dilatation of the main pancreatic duct by about 110% following secretion injection. Nine further probands, 50–74 (median 58) years old, had a dilatation of about 70%. Eighteen patients with confirmed chronic pancreatitis and a pancreatic duct diameter not exceeding 4 mm generally showed no duct enlargement after secretin stimulation. We believe that periductal fibrosis, which is common in chronic pancreatitis, is the most important reason for these results. The use of the sonographic secretin test in the diagnosis of chronic pancreatitis should be considered.
    Type of Medium: Electronic Resource
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