Bibliothek

feed icon rss

Ihre E-Mail wurde erfolgreich gesendet. Bitte prüfen Sie Ihren Maileingang.

Leider ist ein Fehler beim E-Mail-Versand aufgetreten. Bitte versuchen Sie es erneut.

Vorgang fortführen?

Exportieren
Filter
  • Glutathione S-transferase placental type  (1)
  • children  (1)
  • metastatic brain tumour  (1)
Materialart
Erscheinungszeitraum
Schlagwörter
  • 1
    ISSN: 1432-2307
    Schlagwort(e): Arachnoid villi ; Meningioma ; Glutathione S-transferase placental type ; Cerebrospinal fluid
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Medizin
    Notizen: Summary Human normal dura mater containing arachnoid villi were examined for their expression of glutathione S-transferase placental type (GST-π), a detoxifying enzyme, using an immunohistochemical method. All of the arachnoid villi and arachnoid cells in five normal cases were found to have expression of GST-π, although no positive reaction for the enzyme was present in other tissues of the dura mater. The results show a possible role for arachnoid tissues in protecting human brain from hazardous xenobiotics in the cerebrospinal fluid. Twenty-six meningiomas were also examined for expression of the enzyme. Tissues of meningotheliomatous meningiomas were always positive for expression of the enzyme. Transitional meningiomas also showed the expression in their meningotheliomatous components. No staining reaction of GST-π was recognized in fibroblastic meningiomas except for two cases with a tendency to meningotheliomatous differentiation. The findings suggest a functional similarity between the arachnoid tissues and meningotheliomatous components of meningiomas.
    Materialart: Digitale Medien
    Bibliothek Standort Signatur Band/Heft/Jahr Verfügbarkeit
    BibTip Andere fanden auch interessant ...
  • 2
    Digitale Medien
    Digitale Medien
    Springer
    Acta neurochirurgica 98 (1989), S. 1-8 
    ISSN: 0942-0940
    Schlagwort(e): Cerebellum ; malignant astrocytic tumours ; children
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Medizin
    Notizen: Summary The authors reviewed 5 cases of histopathologically verified malignant cerebellar astrocytic tumours (2 anaplastic astrocytomas and 3 glioblastomas) in children admitted to our department. All cases exhibited symptoms and signs of increased intracranial pressure and of a cerebellar lesion. Brain stem symptoms were present in 4 cases. All of the tumours were located in or near the midline of the cerebellum with no large cyst. Surgical removal (70 to 90% removal) of the tumour was performed in 4 cases. In one case only a biopsy was done. Even with subsequent follow-up treatment including radiotherapy, chemotherapy, and/or immunotherapy, the course of the disease could not be reversed, and all of the children died 3 to 13 months (mean 7 months) after admission due to tumour re-growth or recurrence. Tumour dissemination along the walls of the ventricular system was seen in 2 cases, and was considered to be a peculiar, fatal form of tumour recurrence in patients with this type of tumour. Malignant cerebellar astrocytic tumours in children have an extremely poor prognosis. Until, improved therapy is available to counteract this tragic consequence, it will remain so.
    Materialart: Digitale Medien
    Bibliothek Standort Signatur Band/Heft/Jahr Verfügbarkeit
    BibTip Andere fanden auch interessant ...
  • 3
    ISSN: 0942-0940
    Schlagwort(e): Glioma ; metastatic brain tumour ; Ki-67 ; nucleolar organizer regions
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Medizin
    Notizen: Summary Sixteen cases of malignant brain tumours comprising 6 anaplastic astrocytomas, 3 glioblastoma multiforme, 1 medulloblastoma and 6 metastatic brain tumours were investigated independently by a silver colloid method for nucleolar organizer regions (NORs) and an immunohistochemistry using a monoclonal antibody against a nuclear antigen, Ki-67, in proliferating cells. The correlation between the mean number of NORs and the percentage of Ki-67 labelled cells (Ki-67 labelling index) was examined. In addition, four normal brain tissue samples without neoplastic cells were stained for NOR. The mean number of NORs in these malignant brain tumours was significantly greater than that in normal astrocytes (p〈0.001). Moreover, both the mean number of NORs and the Ki-67 labelling index in metastatic brain tumours were significantly greater than those in high-grade gliomas (p〈0.001). The Ki-67 labelling index and the mean number of NORs in malignant brain tumours including metastatic brain tumours were found to be linearly related (r=0.86). These results suggest that the proliferative potential of malignant brain tumours could be evaluated by NOR score as well as Ki-67 labelling index and that such indices provide clear discrimination between high-grade gliomas and metastatic brain tumours.
    Materialart: Digitale Medien
    Bibliothek Standort Signatur Band/Heft/Jahr Verfügbarkeit
    BibTip Andere fanden auch interessant ...
Schließen ⊗
Diese Webseite nutzt Cookies und das Analyse-Tool Matomo. Weitere Informationen finden Sie hier...