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  • 1
    ISSN: 1432-0851
    Keywords: Ewing's sarcoma ; Tumor-specific monoclonal antibodies ; MIC-2
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract A selection of 16 monoclonal antibodies has been produced against a fresh Ewing's sarcoma (ES) tumor mixed with a permanent ES cell line. The majority of antibodies identify an 80-kDa molecule, which is not detected on healthy tissues except on certain cultured monocytes. One antibody recognize the CD2 ligand MIC2 and 2 antibodies (numbers 13 and 16) define a higher-molecular-mass antigen. Antibody 16 is also expressed on mesenchymal fibroblasts of bone marrow or fetal origin. Tumorspecific antigen expression is potentially linked to the chromosome 22 abnormality decribed in Ewing's sarcoma.
    Type of Medium: Electronic Resource
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  • 2
    Electronic Resource
    Electronic Resource
    Springer
    Virchows Archiv 404 (1984), S. 167-176 
    ISSN: 1432-2307
    Keywords: Oesophagitis ; Herpetic cell changes ; Herpes simplex virus ; Immunoperoxidase
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Summary The diagnosis of herpes oesophagitis was established from routinely processed biopsy specimens and cytological brush preparations of six patients by immunoperoxidase staining of herpes simplex virus (HSV)-antigen. Macroscopically small round punched-out ulcers are the most frequent and characteristic feature of herpes oesophagitis, whether occurring in patients with serious debilitating illnesses, under immunosuppression, or without evidence of any significant disease. Light microscopically the herpetic changes of squamous epithelium consist of ballooning degeneration, ground glass nuclei with margination of chromatin, eosinophilic inclusions and multinuclear giant cells. A specific positive reaction with anti-HSV is found only at the borders of the oesophageal ulcers. The immunostaining intensity of nuclei and cytoplasm varies from cell to cell according to the mode of HSV replication in productive infected cells. The latency of HSV in the vagus ganglion and centrifugal neural spread are discussed.
    Type of Medium: Electronic Resource
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  • 3
    Electronic Resource
    Electronic Resource
    Springer
    Virchows Archiv 404 (1984), S. 177-185 
    ISSN: 1432-2307
    Keywords: Oesophagitis ; Herpetic cell change ; Ultrastructure
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Summary Ultra-thin sections obtained from routine biopsy specimens and cytological smears of 3 cases, together with one autopsy case suggestive of herpes oesophagitis, clearly demonstrate herpes viruses. The infected epithelial cells reveal different stages of virus replication and propagation. Cowdry A type inclusion bodies, however, representing early alterations in the course of infection are less frequent. Ground-glass looking nuclei of light microscopical balloon cells and infected multinuclear giant cells of epithelial origin are characteristic changes of the late ulcerative stage of herpes oesophagitis usually seen at the time of detection. These typical virus induced cell changes are mostly to be found at the ulcers edge.
    Type of Medium: Electronic Resource
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  • 4
    ISSN: 1573-2568
    Keywords: CHRONIC HEPATITIS B ; CHRONIC HEPATITIS C ; CHRONIC ACTIVE HEPATITIS ; CHRONIC PERSISTENT HEPATITIS ; CIRRHOSIS ; LIVER BIOPSY
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract The present study prospectively evaluated thevalue of liver biopsy in patients with chronic hepatitisB (N = 75) and C (N = 135) prior to interferon therapy.Biopsy specimens revealed cirrhosis in 26% of patients with hepatitis B and 30% withhepatitis C. Although cirrhosis was not predictable bylaboratory values in individual patients mean gamma-GT,alkaline phosphatase, and bilirubin levels weresignificantly higher in patients with cirrhosis compared tothose without. Since cirrhosis significantly impairs theresponse rate to interferon therapy in hepatitis C butnot in hepatitis B, liver biopsy is important for the management of chronic hepatitis Cinfection. In 88% of patients with serum HBV-DNA,irrespective of the serum HBeAg status, chronic activehepatitis was seen. Similarly, chronic active hepatitis was found in 84% of patients with elevatedaminotransferases and hepatitis C antibodies. Thus,chronic active hepatitis was diagnosed in the majorityof cases with chronic viral hepatitis, showing that this histopathological diagnosis is of littleadditional value for the recommendation on interferontreatment in these patients. However, none of the othergrading systems of liver biopsy specimens described so far have been evaluated for their ability topredict overall prognosis or response rates tointerferon therapy. Therefore, the physician ispresently left with the questionable value of aprocedure with well-known risks and costs in patients suitablefor interferon treatment. Hence, prospective randomizedcontrolled studies to evaluate histopathological gradingsystems are urgently needed to redefine the necessity of liver biopsy in this routineclinical setting.
    Type of Medium: Electronic Resource
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