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  • Electronic Resource  (3)
  • Phosphorylation  (2)
  • Cerebellar focal lesions  (1)
  • 1
    ISSN: 1432-0533
    Keywords: Axonal damage ; Cerebellar focal lesions ; Human Purkinje cell ; Torpedoes
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Summary Cerebellar torpedoes, unique fusiform swellings of Purkinje cell axons within the granular layer, have been known to occur sparsely associated with diffuse cerebellar changes. This report describes, in three human autopsy cases with focal necrotic lesions in the cerebellar white matter, torpedoes which were essentially confined to the cerebellar cortex overlying the lesions. Purkinje cells in the same region showed no recognizable change, but were obviously decreased in number. The location of the necrotic lesions was such that they may well have severed Purkinje cell axons projecting into the deeply located cerebellar nuclei from the torpedo-carrying cortex. These findings indicate that damage to Purkinje cell axons, even if it occurs far away from the cell bodies, may have a critical influence upon the metabolism of Purkinje cells and play an important role in the formation of torpedoes.
    Type of Medium: Electronic Resource
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  • 2
    ISSN: 1432-0533
    Keywords: Key words: Neurofibrillary tangle ; Tau ; Phosphorylation ; Astrocyte ; Oligodendrocyte
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract Tau accumulating as paired helical filaments (PHF) in Alzheimer's disease brain is considered to be abnormally phosphorylated on distinct sites. To compare the phosphorylation state of tau-positive neuronal inclusions among diverse neurologic diseases, we have probed these lesions with three well-defined PHF/tau monoclonals, C5, M4 and tau 1, that most likely recognize three proline-directed phosphorylation sites in PHF-tau. In Alzheimer's disease brain all three monoclonals intensely immunostained intracellular neurofibrillary tangles, neuropil threads, senile plaque neurites, and “pretangle neurons” in a phosphorylation-dependent manner. They also stained, in the same manner, Pick bodies in Pick's disease, and neurofibrillary tangles and neuropil threads in various tangle-forming neurologic diseases. In most of these diseases (including Pick's disease, progressive supranuclear palsy, subacute sclerosing panencephalitis, and Alzheimer's disease) astrocytes and oligodendrocytes were found to contain tau-positive inclusions which showed the same immunocytochemical characteristics. Thus, the widely occurring tau-positive inclusions share common phosphorylation characteristics irrespective of underlying diseases or cell types.
    Type of Medium: Electronic Resource
    Library Location Call Number Volume/Issue/Year Availability
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  • 3
    ISSN: 1432-0533
    Keywords: Neurofibrillary tangle ; Tau ; Phosphorylation ; Astrocyte ; Oligodendrocyte
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract Tau accumulating as paired helical filaments (PHF) in Alzheimer's disease brain is considered to be abnormally phosphorylated on distinct sites. To compare the phosphorylation state of tau-positive neuronal inclusions among diverse neurologic diseases, we have probed these lesions with three well-defined PHF/tau monoclonals, C5, M4 and tau 1, that most likely recognize three proline-directed phosphorylation sites in PHF-tau. In Alzheimer's disease brain all three monoclonals intensely immunostained intracellular neurofibrillary tangles, neuropil threads, senile plaque neurites, and “pretangle neurons” in a phosphorylation-dependent manner. They also stained, in the same manner, Pick bodies in Pick's disease, and neurofibrillary tangles and neuropil threads in various tangle-forming neurologic diseases. In most of these diseases (including Pick's disease, progressive supranuclear palsy, subacute sclerosing panencephalitis, and Alzheimer's disease) astrocytes and oligodendrocytes were found to contain tau-positive inclusions which showed the same immunocytochemical characteristics. Thus, the widely occurring tau-positive inclusions share common phosphorylation characteristics irrespective of underlying diseases or cell types.
    Type of Medium: Electronic Resource
    Library Location Call Number Volume/Issue/Year Availability
    BibTip Others were also interested in ...
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