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  • 1
    Digitale Medien
    Digitale Medien
    Springer
    Virchows Archiv 371 (1976), S. 69-77 
    ISSN: 1432-2307
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Medizin
    Beschreibung / Inhaltsverzeichnis: Zusammenfassung Die Rolle des Serumkomplementsystems für die Entwicklung der initialen Acinuszellnekrose bei akuten Pankreatitiden wurde untersucht. Nach intraduktaler Injektion von Basalmembran-Antikörpern entwickelten sich im Verlauf von 10–30 min bei Ratten und Mäusen Azinuszellnekrosen in unmittelbarer Nachbarschaft der an den Basalmembranen darstellbaren Antikörper- und Komplementablagerungen. Das Ausmaß des Parenchymschadens und der Komplementablagerungen stand in direkter Korrelation zu der injizierten Antikörpermenge. Die Bedeutung des zytolytisch aktiven Komplements für die Entwicklung der Nekrosen wurde durch Untersuchungen an Komplement-defekten Mäusen herausgestellt. Während sich bei den genetisch C5-defekten DBA2J- und B10D2 old line-Mäusen keine Azinuszellnekrosen entwickelten, zeigten die mormokomplementämischen C57 Black- und B10D2 new line-Mäuse ausgedehnte Nekrosefelder nach intraduktaler Antikörper-applikation. Die Ergebnisse lassen vermuten, daß zytolytisch aktives Komplement für den initialen Membranschaden der Azinuszelle bei der akuten autodigestiven Pankreatitis verantwortlich ist.
    Notizen: Summary To study the role of the serum complement system in the early necrosis of acinar cells an acute pancreatitis was produced by injection of basement membrane antibodies into the pancreatic duct of mice and rats. In all animals deposition of complement (C3) and antibasement membrane IgG could be observed in an identical position within areas of acinar cell necrosis. The extent of parenchymal damage and the intensity of complement deposits corresponded to the injected dose of antibodies. The importance of cytolytically active complement components (C5–9) was demonstrated in congenitally C5-defective old line mice which did not show typical centrolobular necroses 1 h after intraductal injection of antibodies. However, the normocomplementemic mice developed extensive necroses of acinar cells. These results support the hypothesis of a complement-induced acinar cell necrosis in acute pancreatitis.
    Materialart: Digitale Medien
    Bibliothek Standort Signatur Band/Heft/Jahr Verfügbarkeit
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  • 2
    Digitale Medien
    Digitale Medien
    Springer
    Virchows Archiv 379 (1978), S. 169-179 
    ISSN: 1432-2307
    Schlagwort(e): Progressive systemic sclerosis in childhood ; Segmental membranoproliferative glomerulonephritis ; Immune complex disease
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Medizin
    Notizen: Summary The renal lesions of a 5-year-old girl with progressive systemic sclerosis are described. The nephropathy was clinically characterised by moderate proteinuria, microscopic hematuria and transient hypertension. Light microscopy showed membranoproliferative glomerulonephritis of segmental character. On electron microscopy intramesangial, subendothelial and extramembranous glomerular deposits were observed. By immunofluorescence microscopy deposits of IgG, Clq, C4, C3, C5, C8 und C9 in a predominantly subendothelial location were found in all glomeruli. Vascular lesions were of minor degree. Histological and immunohistological findings are compatible with an immune complex disease.
    Materialart: Digitale Medien
    Bibliothek Standort Signatur Band/Heft/Jahr Verfügbarkeit
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  • 3
    Digitale Medien
    Digitale Medien
    Springer
    Journal of molecular medicine 46 (1968), S. 555-556 
    ISSN: 1432-1440
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Medizin
    Beschreibung / Inhaltsverzeichnis: Summary Two families with dominant inherited bisalbuminemia of the slow moving type were examined. The electrophoretic pattern of the paralbumin displayed diminished migratory behaviour with respect to the normal serumalbuminfraction. The pure extract of liver cell albumin of one heriditarily afflicted member showed two different albuminfractions too.
    Notizen: Zusammenfassung Zwei Familien mit dominant erblicher Dialbuminämie vom langsam wandernden Typ wurden untersucht. Das Elektrophoresebild zeigte eine verminderte Wanderungsgeschwindigkeit des abartigen Albumins gegenüber der normalen Serumalbuminfraktion. Bei einem Erbmalsträger konnte die Verdoppelung der Albuminfraktionen im rein dargestellten Leberzelleiweiß nachgewiesen werden.
    Materialart: Digitale Medien
    Bibliothek Standort Signatur Band/Heft/Jahr Verfügbarkeit
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  • 4
    ISSN: 1432-1440
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Medizin
    Beschreibung / Inhaltsverzeichnis: Summary The stimulating activity of Pentagastrin (ICI 50, 123) on gastric secretion of HCl was investigated. After incubation with human serum and homogenate of rat liver Pentagastrin lost its stimulating activity in rat stomach depending on time of incubation and on serum volume. We conclude, that an enzymatic hydrolysis of Pentagastrin took place.
    Notizen: Zusammenfassung Die säurestimulierende Wirkung von Pentagastrin (ICI 50, 123) nach Inkubation mit Humanserum und Leberhomogenat wurde am Rattenmagen untersucht. Wir fanden eine von der Inkubationsdauer und von der Menge des Inkubationsgemisches abhängige Senkung der Pentagastrinaktivität, was auf eine enzymatische Hydrolyse schließen läßt.
    Materialart: Digitale Medien
    Bibliothek Standort Signatur Band/Heft/Jahr Verfügbarkeit
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  • 5
    Digitale Medien
    Digitale Medien
    Springer
    European journal of pediatrics 120 (1975), S. 111-120 
    ISSN: 1432-1076
    Schlagwort(e): Infantile nephrotic syndrome ; Mesangial sclerosis ; Immunohistology ; Pathogenesis of nephrotic syndrome
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Medizin
    Beschreibung / Inhaltsverzeichnis: Zusammenfassung Bei einem Säugling, der im Alter von 10 Monaten an einem steroid-resistenten nephrotischen Syndrom erkrankte, wurde bei der Nierenbiopsie eine diffuse mesangiale Sklerose der Glomeruli festgestellt. Nach dem Tod an interstitieller Pneumonie 3 Monate nach Krankheitsbeginn wurde der Nierenbefund bestätigt. Der Prozeß betraf sämtliche Glomeruli, war aber segmental verschieden stark ausgeprägt. Immunhistologisch wurden granuläre Ablagerungen von IgM und Komplement (C3) im Mesangium und subendothelial an der Basalmembran beobachtet. Die Befunde sprechen dafür, daß bei der Pathogenese der diffusen mesangialen Sklerose möglicherweise die Bildung und glomeruläre Ablagerung von Immunkomplexen eine Rolle spielen.
    Notizen: Abstract A 10-month-old infant developed a steroid resistant nephrotic syndrome. The renal biopsy revealed diffuse mesangial sclerosis of the glomerula. The child died from interstitial pneumonia 3 months after onset of the renal symptoms. Post mortem, the glomerular changes were diffuse but prominent in certain segments of the glomeruli. The immunohistological examination showed granular deposits of IgM and C3 in the mesangium and in the subendothelial region of the basement membrane. These findings are compatible with the hypo. thesis that diffuse mesangial sclerosis is caused by glomerular deposition of immune complexes.
    Materialart: Digitale Medien
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  • 6
    Digitale Medien
    Digitale Medien
    Springer
    European journal of pediatrics 134 (1980), S. 13-22 
    ISSN: 1432-1076
    Schlagwort(e): IgA-Glomerulonephritis ; Haematuria ; Proteinuria
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Medizin
    Notizen: Abstract Nineteen out of 83 children with asymptomatic haematuria were classified as having IgA glomerulonephritis, characterized by diffuse mesangial deposition of IgA in the absence of systematic disease. Different histological patterns were observed: i.e., minor glomerular lesions (5 cases), focal and segmental proliferative glomerulonephritis (8 cases) and diffuse proliferative glomerulonephritis (6 cases). Recurrent gross haematuria is the clinical hallmark of the disease. Proteinuria was present in 14 children and exceeded 1 g/m2/day in 3 patients. Clinico-pathological correlations showed a close relation between the degree of proteinuria and the histological lesions. Serum IgA levels were elevated in 3 children. Glomerular filtration rate remained above 80 ml/min/1.73 m2 in a 1 to 9 year follow-up.
    Materialart: Digitale Medien
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  • 7
    ISSN: 1437-160X
    Schlagwort(e): Systemic lupus erythematosus ; HLA-DP ; Ro (SS-A) autoantibodies ; La (SS-B) autoantibodies ; Genetics
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Medizin
    Notizen: Summary We investigated the association of HLA-DPB1 alleles with the occurrence of autoantibodies against Ro (SS-A) or La (SS-B) using recombinant 52kD-Ro, 60 kD-Ro and La proteins in 177 German patients with systemic lupus erythematosus (SLE). A significant increase in the frequency of DPB1 *0101 is observed in SLE patients compared to healthy controls (P corr.〈0.004). Antibodies against 52 kD-Ro, 60 kD-Ro and La are tested by ELISA and are found with a frequency of 25.4%, 33.9% and 17.5% in the patients, respectively. An association with HLA-DPB1 *0101 is observed for antibodies against La (P〈0.01) and 52 kD-Ro (P〈0.01), but not for 60 kD-Ro in the absence of La/52 kD-Ro. Since there is a strong linkage disequilibrium between DPB1 *0101 and DR3 in the normal population and in SLE patients, and since there is an association between DR3 and SLE, as well as between DR3 and the occurrence of recombinant Ro/La antibodies in SLE patients, we investigated whether DPB1 *0101 is associated per se or via linkage disequilibrium with DR3. DPB1 *0101 in the absence of DR3 is not more common in patients than in controls and not in patients with autoantibodies to Ro and La than without antoantibodies. We conclude that there is no evidence for a direct involvement of DPB1 *0101 in the production of Ro/La autoantibodies in SLE patients.
    Materialart: Digitale Medien
    Bibliothek Standort Signatur Band/Heft/Jahr Verfügbarkeit
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  • 8
    ISSN: 1437-160X
    Schlagwort(e): Systemic lupus erythematosus ; Ro and La antibodies ; Multicenter study ; Genetics
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Medizin
    Notizen: Summary Antibodies against Ro and La, including recombinant La and recombinant 60 kD-Ro, were determined by counter immunoelectrophoresis and ELISA in over 300 central European systemic lupus erythematosus (SLE) patients. The presence of both Ro and La antibodies was strongly associated with the MHC haplotype B8-C4AQ0-DR3-DQ2, the association being stronges for DR3. After exclusion of all B8-DR3 positive patients only DR3 positive patients still showed an increased incidence of Ro and La antibodies, suggesting DR3 as the primary association factor. High titers of La antibody, but not of 60 kD-Ro antibody, were also significantly associated with the presence of DR3. Other DR and DQ antigens or heterozygous DQ combinations were not significantly associated with Ro and La antibodies.
    Materialart: Digitale Medien
    Bibliothek Standort Signatur Band/Heft/Jahr Verfügbarkeit
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  • 9
    ISSN: 1437-160X
    Schlagwort(e): Systemic lupus erythematosus ; Recombinant U1-nRNP proteins ; Genetics
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Medizin
    Notizen: Abstract To investigate a possible involvement of HLA-class II alleles in the genetic predisposition for the formation of anti-U1-nRNP antibody in systemic lupus erythematosus (SLE), genomic DNA of 178 patients was typed for the DRB1, DQA1 and DQB1 alleles using a polymerase chain reaction (PCR) and non-radioactive-oligonucleotide typing. Antibodies against recombinant U1-nRNP proteins (U1-A- U1-C-and 70K-protein) were determined by ELISA. Anti-U1-C antibody was found in 26 (14.7%), anti-U1-A in 34 (19.2%) and anti-70K in 17 (9.6%) patients. A joint occurrence was observed for these antibodies against the recombinant U1-nRNP proteins: anti-U1-C and anti-U1-A antibodies occurred together more frequently than alone and than together with anti-U1-70K antibodies. The frequency of DRB1 * 04 was slightly increased in the patients with anti-U1-C as compared to the patients without anti-U1-C (P〈0.05, Pcorr=n.s., RR=2.4). The DQA1 * 0301 allele, which is in linkage disequilibrium with DRB1 * 04, is found more frequently in anti-U1-C-positive than in antibody-negative patients. The DQB1 * 0303 allele, detected in 12 of 176 SLE patients, was absent in the patients with any of the antibodies against the U1-nRNP proteins. All these deviations may be due to chance alone. We concluded that the presence of antibodies against recombinant U1-nRNP proteins was not significantly associated with any HLA DRB1, DQA1 and DQB1 allele in our group of SLE patients.
    Materialart: Digitale Medien
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  • 10
    Digitale Medien
    Digitale Medien
    Springer
    Journal of molecular medicine 61 (1983), S. 911-915 
    ISSN: 1432-1440
    Schlagwort(e): Mesangial IgA-glomerulonephritis ; IgA1 ; Polymeric IgA
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Medizin
    Notizen: Summary IgA deposits in kidney and skin biopsies from patients with idiopathic mesangial IgA-glomerulonephritis were characterized with immunofluorescence microscopy using monoclonal antibodies against the IgA subclasses IgA1 and IgA2. IgA1 was the major constituent in all biopsy specimens. Double immunofluorescence microscopy showed that IgA deposits were constantly associated with J-chain. Secretory component was never found in the deposited material. In vitro fixation of free secretory component, however, was observed in some biopsies. These findings indicate that most if not all of the deposited IgA in patients with idiopathic IgA-glomerulonephritis is polymeric in nature.
    Materialart: Digitale Medien
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