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  • 1980-1984  (2)
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Material
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Year
  • 1
    Electronic Resource
    Electronic Resource
    Roles of subarachnoid blood clots and norepinephrine in cerebral vasospasm (1982)
    Springer
    Acta neurochirurgica 63 (1982), S. 277-280 
    Details
    ISSN: 0942-0940
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Summary The content of norepinephrine (NE) in the ventricular, basal cisternal and lumbar cerebrospinal fluid (CSF) was determined in 19 patients with ruptured cerebral aneurysms. The cisternal CSF in patients with vasospasm contained a significantly higher level of NE (0.246 ± 0.049 ng/ml) compared with those without vasospasm (0.075 ± 0.001 ng/ml) (p 〈 0.001). However, this increase is not considered to be high enough to constrict cerebral arteries, unless there is an increased NE-sensitivity in subarachnoid haemorrhage. Vascular responses to NE in vivo were then studied after reversing blood-induced prolonged vasospasm of the rabbit's basilar artery through a transclival approach as well as a newly developed basal cisternal irrigation model. However, NE in molar concentrations between 1 × 10−10 and 10−2 failed to produce further contraction of the artery. In conclusion, the increase in NE with vasospasm might be only a secondary phenomenon, and not a causative factor of vasospasm. Early removal of subarachnoid blood clots seemed to prevent the development of vasospasm.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01728882
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    Paper (German National Licenses)
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  • 2
    Electronic Resource
    Electronic Resource
    Immunohistochemical characterization of functional markers in human minor salivary gland tumors (1984)
    Oxford, UK : Blackwell Publishing Ltd
    Journal of oral pathology & medicine 13 (1984), S. 0 
    Details
    ISSN: 1600-0714
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Medicine
    Notes: The distribution of carcinoembryonic antigen (CEA), secretory component (SC), immunoglobulin A (IgA), immunoglobulin M (IgM), J-chain, and lysozyme in tumors of minor salivary glands was investigated using an immunoperoxidase method. Although CEA was demonstrated in both benign and malignant tumors, its distribution was relatively more common and with increased staining intensity in malignant tissues. In pleomorphic adenomas, the distribution of SC was similar to that of IgA and J-chain, suggesting the presence of secretory IgA in the epithelial cells. However, some neoplastic epithelial cells contained SC but not IgA and J-chain. No IgM was detected in such cells. Lysozyme could be demonstrated only in pleomorphic adenomas. Mucocpidermoid tumors and adenoidcystic carcinomas were negative for lysozyme. These findings suggest that some neoplastic ductal epithelial cells of pleomorphic adenomas retain functional characteristics of normal epithelial cells.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1600-0714.1984.tb01453.x
    Library Location Call Number Volume/Issue/Year Availability
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    Paper (German National Licenses)
    Fulltext
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