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  • 1
    ISSN: 1420-908X
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract Given the role of IL-1 in inflammation and in autoimmune diseases, studies were designed to examine the ability of IL-1 receptor (IL-1-R) to suppress inflammation in a model of chronic degenerative joint disease of adjuvant arthritis (AA) in Lewis rats and to suppress the development of a systemic lupus erythematosus (SLE)-like disease in MRL/lpr mice. IL-1-R was able to prevent the onset of the AA and, even if therapy started after the establishment of AA, the cytokine receptor was still able to reduce the degree of chronic inflammation and arrested its progress. Treating MRL/lpr mice with IL-1-R resulted in a decrease in the amount of autoantibodies and inhibited joint inflammation. Even in the established disease IL-1-R could reduce rheumatoid factors (RF) and autoantibodies, and the signs of a polyarthritis were inhibited.
    Type of Medium: Electronic Resource
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  • 2
    Electronic Resource
    Electronic Resource
    Springer
    Fresenius' journal of analytical chemistry 358 (1997), S. 273-274 
    ISSN: 1432-1130
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology
    Notes: Abstract Results of an extensive examination concerning effectiveness and durability of two different commercial organosilicon impregnating mixtures applied to Obernkirchener sandstone are presented briefly. Hygric tests and contact angle measurements prior to spectroscopic surface investigations of a propyl/octylsilane mixture and a methyl/octylsiloxane mixture reveal different long-term stability of the protective organosilicon coatings. General surface characteristics of the coatings were elucidated by time-of-flight secondary ion mass spectrometry (TOF-SIMS). The measurements on freshly soaked stone slabs give evidence of spherical silsesquioxanes and their homoderivatives only of the precursor compound with the shorter alkyl chain. Investigations on the weathered coatings (8 years) show the presence of silsesquioxanes only in case of the silane system. Additional DRIFT (diffuse reflectance FT-IR) measurements on both freshly soaked and exposed material confirm the presence of the coating in case of the silane mixture, but not in case of the siloxane mixture.
    Type of Medium: Electronic Resource
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  • 3
    ISSN: 1420-908X
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract Due to the immunopharmacological profile of the recombinant IL-1 receptor (IL-1-R) and its potential to modulate biological activity in various inflammatory autoimmune disease models, we further elucidated its disease modifying activity on the development of a systemic lupus erythematosus (SLE)-like disease in BDF1 hybrid mice and in MRL/lpr autoimmune mice. Treatment of BDF1 mice with the IL-1-R during the induction phase resulted in a strong inhibition of the development of a glomerulonephritis, prolonged the survival time and improved the survival rate. Even a therapeutic effect was demonstrated when this receptor was given after the appearance of clinical symptoms. Treating MRL/lpr mice, which develop spontaneously a SLE-like disease, with the IL-1-R resulted in an inhibition of the developing glomerulonephritis and splenomegaly, in a reduction of swollen lymph nodes and in a decrease of autoantibody formation. Even in the established autoimmune disease of MRL/1pr mice the IL-1-R reduced proteinuria, the levels of autoantibodies and also improved the survival rate.
    Type of Medium: Electronic Resource
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  • 4
    Electronic Resource
    Electronic Resource
    Springer
    Archives of gynecology and obstetrics 236 (1985), S. 145-151 
    ISSN: 1432-0711
    Keywords: Fetal monitoring ; Transcutaneous pO2x ; Transcutaneous pCO2x ; Fetal physiology
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Summary We used newly developed transcutaneous electrodes to measure continuously the partial pressure of oxygen (tcpO2) and carbon dioxide (tcpCO2) in 34 fetuses during labor, having simultaneous cardiotocography (CTG) and temperature measurements. We observed that tcpO2 and tcpCO2 varied with contractions during the first and second stages of labor. In some cases changes in the transcutaneous values corresponded well with changes in the CTG, we also detected changes in the fetal gas metabolism that were not noticeable on the cardiotocographic tracing. We defined the characteristic of the tcpO2 and tcpCO2 during the second stage of labor and found that the tcpO2 decreased and the tcpCO2 rose at this time.
    Type of Medium: Electronic Resource
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  • 5
    Electronic Resource
    Electronic Resource
    Springer
    Archives of gynecology and obstetrics 238 (1985), S. 325-326 
    ISSN: 1432-0711
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Type of Medium: Electronic Resource
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  • 6
    Electronic Resource
    Electronic Resource
    Springer
    Archives of gynecology and obstetrics 238 (1985), S. 371-372 
    ISSN: 1432-0711
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Type of Medium: Electronic Resource
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  • 7
    Electronic Resource
    Electronic Resource
    Springer
    Archives of gynecology and obstetrics 238 (1985), S. 780-782 
    ISSN: 1432-0711
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Type of Medium: Electronic Resource
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  • 8
    Electronic Resource
    Electronic Resource
    Springer
    Der Pathologe 21 (2000), S. 358-363 
    ISSN: 1432-1963
    Keywords: Schlüsselwörter Kleinzelliges Lungenkarzinom ; Neoadjuvante Chemotherapie ; Differenzierungswandel ; Adenokarzinom ; Tumorheterogenität ; Keywords Small-cell lung cancer ; Neoadjuvant chemotherapy ; Changing differentiation ; Adenocarcinoma ; Tumor heterogeneity
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Description / Table of Contents: Abstract We reexamined biopsy and resection specimens from seven patients with histologically established primary diagnosis of small-cell lung cancer (SCLC) which showed previously undetected adenocarcinomatous differentiation after chemotherapy. Adenocarcinoma was diagnosed in the same part of the lung as was SCLC before treatment in five cases and in contralateral location in two. Two tumors showed heterogeneous differentiation with small-cell and adenocarcinomatous components, and five had only adenocarcinoma. The interval between histological evidence of SCLC and adenocarcinoma was 3 months–5 years. From the specific findings in the respective patients we can offer two possible explanations for changing differentiation in SCLC after chemotherapy: (a) a primarily heterogeneously differentiated tumor with selection of adenocarcinomatous component under chemotherapy, and (b) an independently developed adenocarcinoma after successful chemotherapy of SCLC, as patients with treated SCLC are known to have an increased risk of non-SCLC. However, therapy-induced alteration of differentiation seems much more unlikely. These findings should be considered in diagnosis and therapy of SCLC to allow early and appropriate reaction to non-SCLC components.
    Notes: Zusammenfassung Von 7 Patienten mit histologisch gesichertem und chemotherapeutisch behandeltem kleinzelligem Lungenkarzinom wurden die zur Verlaufskontrolle oder zur Therapie entnommenen Präparate, die in allen Fällen Strukturen eines prätherapeutisch nicht bekannten Adenokarzinoms aufwiesen, histologisch aufgearbeitet und lichtmikroskopisch untersucht. Ziel unserer Studie sollte es sein, mögliche Erklärungsansätze für den hier beobachteten Differenzierungswandel aufzuzeigen. Unsere Ergebnisse legen im wesentlichen folgende 2 Erklärungsmöglichkeiten nahe: 1. Bei der bekannten Heterogenität bösartiger Lungentumoren lag bereits prätherapeutisch ein heterogen differenzierter Tumor vor, wobei der phänotypisch adenoid differenzierte Anteil in der Primärbiopsie nicht erfasst wurde und/oder es unter der Therapie zu einer Tumorselektion der zunächst quantitativ unbedeutenden adenoiden Komponente kam. 2. Es lag ein zweiter Primärtumor vor, der unabhängig vom kleinzelligen Karzinom entstanden ist.
    Type of Medium: Electronic Resource
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  • 9
    Electronic Resource
    Electronic Resource
    Springer
    Der Pathologe 19 (1998), S. 442-446 
    ISSN: 1432-1963
    Keywords: Schlüsselwörter Perikardtumor ; Synoviales Sarkom ; Mesotheliom ; BK 4105 ; Key words Pericardial tumor ; Synovial sarcoma ; Mesothelioma ; BK 4105
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Description / Table of Contents: Summary A precordial tumor of the pericardium was radiologically diagnosed as the cause of an untypical clinical picture of heart disease in a 41-year-old soldier. As the patient had an increased asbestos exposure due to his profession, he was admitted to operation under the tentative diagnosis of a pericardial mesothelioma and the question of an occupational disease (BK 4105). Microscopic and immunohistochemical findings are compatible with the diagnosis of a synovial sarcoma of the pericardium. The present immunohistochemical marker spectrum allowed a reliable differentiation between synovial sarcoma and pericardial mesothelioma, which is more frequent than synovial sarcoma. The epitheloid component was determined using the following antibodies: MNF 116, CK 19, CK 7, EMA and Ber EP-4 were positive while Faktor VIII, Calretinin, S100, Vimentin, CEA, CD 31, bcl-2 and HBA-71 were negative. The sarcomatous component was determined with antibodies to Vimentin, bcl-2 and HBA-71 which were positive, and to MNF 116, CK 19, CK 7, Faktor VIII, Calretinin, S100, EMA, CEA, Ber EP-4 and CD 31 which were negative. Synovial sarcomas of the pericardium in the lower anterior mediastinum or the myocardium are exceedingly rare. A causal relationship between tumor formation and an increased asbestos exposure – similar to the epidemiologically based experiences with pericardial mesothelioma – is not likely. Primary extrapericardial synovial sarcoma could be excluded.
    Notes: Zusammenfassung Als Ursache eines uncharakteristischen kardialen Beschwerdebildes wurde bei einem 41 Jahre alten Soldaten radiologisch ein präkordialer Tumor im Herzbeutelbereich diagnostiziert. Bei Hinweisen auf eine erhöhte berufliche Asbestexposition erfolgte die Operation unter der Verdachtsdiagnose eines noch begrenzten perikardialen Mesothelioms mit Fragestellung nach einer Berufskrankheit der BK-Ziffer 4105. Mikroskopische und immunhistochemische Befunde führten zur Diagnose eines Synovialsarkoms im Bereich des Perikards. Das immunhistochemische Markerspektrum erlaubt eine klare Abgrenzung gegenüber den vergleichsweise häufigeren perikardialen Mesotheliomen: ·* epitheloide Komponente: *(MNF 116, CK 19, CK 7, EMA, Ber EP-4-positiv Faktor VIII, Calretinin, S100, Vimentin, CEA, CD 31, bcl-2, HBA-71-negativ); ·*sarkomatöser Anteil: *(Vimentin, bcl-2, HBA-71-positiv MNF 116, CK 19, CK 7, Faktor VIII, Calretinin, S100, EMA, CEA, Ber EP-4, CD 31-negativ). Synovialsarkome des vorderen unteren Mediastinums im Bereich des Herzbeutels bzw. im Myokard sind bisher nur vereinzelt mitgeteilt worden. Hinweise auf wahrscheinliche oder sogar zu sichernde Zusammenhänge zwischen Tumorentwicklung und einer vergleichsweise erhöhten Asbestfeinstaubexposition –ähnlich den epidemiologisch gestützten Erfahrungen beim perikardialen Mesotheliom – sind nicht wahrscheinlich. Anhaltspunkte für ein primär extraperikardiales Synovialsarkom fehlen.
    Type of Medium: Electronic Resource
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  • 10
    ISSN: 1432-8798
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Summary The CD4 cell surface antigen belongs to the immunoglobulin superfamily and is the primary receptor for the human immunodeficiency virus 1 (HIV-1). The high affinity interaction between HIV-1 and CD4 is mediated by the viral envelope glycoprotein gp120. Recombinant soluble CD4 (rsCD4) has been shown in vitro to be an effective inhibitor of HIV-1 and HIV-2 propagation in lymphoid cells. A variety of antibody-like molecules were constructed, consisting of different parts of the extracellular domain of CD4 fused to immunoglobulin constant regions. The fusion proteins were expressed in mammalian cell lines and purified via affinity chromatography. The specificity and anti-viral effects of the different CD4-immunoglobulin constructs against HIV were analysed by different immunological tests, i.e., immunofluorescence, neutralisation and in vitro assays. In pharmacokinetic studies, differences were found in serum half-life between the four- and two-domain CD4 constructs in cynomolgus monkeys and between glycosylated and deglycosylated CD4-Fc constructs in rabbits. In two in vivo experiments using the four-domain CD4-Fc in SIV-infected macaques, no beneficial effects were observed.
    Type of Medium: Electronic Resource
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