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  • 1
    Electronic Resource
    Electronic Resource
    s.l. : American Chemical Society
    Journal of the American Chemical Society 78 (1956), S. 2035-2038 
    ISSN: 1520-5126
    Source: ACS Legacy Archives
    Topics: Chemistry and Pharmacology
    Type of Medium: Electronic Resource
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  • 2
    Electronic Resource
    Electronic Resource
    Springer
    Acta neuropathologica 84 (1992), S. 157-162 
    ISSN: 1432-0533
    Keywords: Vimentin ; Astrocyte ; Microglia ; Macrophage ; Alzheimer's disease
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Summary Vimentin immunoreactivity was examined in brain tissues from non-neurological and various human central nervous system disease cases. In all brain tissues examined, vimentin immunoreactivity was intensely positive in ependymal cells and subpial tissues, and weakly positive in some capillaries and some white matter astrocytes. In affected areas of Alzheimer's disease (AD), Pick's disease, amyotrophic lateral sclerosis (ALS), multiple sclerosis (MS) and cerebral infarction cases, numerous intensely vimentin-immunopositive astrocytes of both protoplasmic and fibrous morphology were demonstrated. A few such astrocytes were also observed in Parkinson's disease and progressive supranuclear palsy. ALS, MS and infarction brains also had numerous, strongly vimentin-positive, round and fat-laden microglia/macrophages. In AD and ALS, a few reactive microglia with irregularly enlarged shapes were vimentin positive. In AD, they were almost exclusively related to senile plaques.
    Type of Medium: Electronic Resource
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  • 3
    ISSN: 1432-0533
    Keywords: Key words: Parkinson's disease – Substantia nigra – Insulin receptor – Immunochemistry
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract. Immunohistochemistry using both a newly developed polyclonal, and a commercially available monoclonal, anti-insulin receptor antibody was done on the midbrain from cases of idiopathic Parkinson's disease (PD), Alzheimer's disease, amyotrophic lateral sclerosis, vascular parkinsonism and non-neurological controls. Both antibodies gave indentical patterns of neuronal staining. The neurons of the oculomotor nucleus were immunopositive in all the brains. However, the neurons in the pars compacta of the substantia nigra, paranigral nucleus, parabrachial pigmental nucleus, tegmental pedunculopontine nucleus, supratrocheal nucleus, cuneiform nucleus, subcuneiform nucleus and lemniscus medialis, which were positive in other diseases and in non-neurological controls, were not stained by these antibodies in PD brains. These results suggest that, in PD, a dysfunction of the insulin/insulin receptor system may precede death of the dopaminergic neurons.
    Type of Medium: Electronic Resource
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  • 4
    ISSN: 1432-0533
    Keywords: Progressive supranuclear palsy ; Astrocyte ; Alzheimer type I glia ; CD44 ; Dopamine
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Summary The previously reported unusual, Tau-positive glia with astrocytic morphology seen in brain tissues from cases of progressive supranuclear palsy (PSP) were re-examined immunohistochemically using antibodies to CD44 and vimentin, as well as Alz-50. Four brains of PSP cases, one of whom had atypical clinical features, were examined. All four cases showed the unusual glia which were positive to Alz-50 and anti-CD44 antibodies, but negative to anti-vimentin antibody. Ultrastructurally, they had either paired nucleated or lobulated nuclei and the cytoplasm frequently contained lipofuscin pigment. The CD44 was located on the surface of the cell bodies and their processes. Such glia were most numerous in the striatum in all cases. They also appeared in the cortex and some subcortical nuclei in the three typical cases. They were not seen in the lower brain stem or cerebellum. In their morphological characteristics and regionally specific appearance, these unusual glia seemed similar to the Alzheimer type I glia which are commonly seen in hepatic encephalopathy or Wilson's disease.
    Type of Medium: Electronic Resource
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  • 5
    ISSN: 1432-0533
    Keywords: Alzheimer's disease ; Cerebral cortex ; β-amyloid protein
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Summary The spatial pattern of β-amyloid protein (BAP) deposits in Alzheimer's disease cerebral cortex was investigated. In cortical areas where the accumulation of BAP was relatively sparse, the deposits tended to accumulate vertically in a columnar arrangement. Typically, these aggregates consisted of both consolidated and diffuse deposits approximately 200 to 600 μm in width. Blood vessels running perpendicularly to the pial surface were sometimes observed penetrating the center of these colunms, but this was not a consistent finding. These BAP extracellular aggregates might be related to the columnar organization of the cerebral cortex.
    Type of Medium: Electronic Resource
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  • 6
    ISSN: 1432-0533
    Keywords: Parkinson's disease ; Substantia nigra ; Insulin receptor ; Immunochemistry
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract Immunohistochemistry using both a newly developed polyclonal, and a commercially available monoclonal, anti-insulin receptor antibody was done on the midbrain from cases of idiopathic Parkinson's disease (PD), Alzheimer's disease, amyotrophic lateral sclerosis, vascular parkinsonism and non-neurological controls. Both antibodies gave indentical patterns of neuronal staining. The neurons of the oculomotor nucleus were immunopositive in all the brains. However, the neurons in the pars compacta of the substantia nigra, paranigral nucleus, parabrachial pigmental nucleus, tegmental pedunculopontine nucleus, supratrocheal nucleus, cuneiform nucleus, subcuneiform nucleus and lemniscus medialis, which were positive in other diseases and in non-neurological controls, were not stained by these antibodies in PD brains. These results suggest that, in PD, a dysfunction of the insulin/insulin receptor system may precede death of the dopaminergic neurons.
    Type of Medium: Electronic Resource
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  • 7
    ISSN: 1432-0533
    Keywords: Diffuse amyloid deposits ; Alzheimer's ; Presubiculum
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Summary Silver staining by a modified Bielschowsky's technique and immunostaining for β-amyloid protein BAP have revealed the occurrence of diffuse amyloid deposits bilaterally in the presubiculum in each of fourteen Alzheimer's disease cases examined. Observations on serial blocks show these deposits to be localized in the parvopyramidal layer of the presubiculum proper and the transsubiculum. They are also observed in the cellular islands within the molecular layer of the subiculum but not in the parasubiculum. These amyloid deposits are not accompanied by neurofibrillary tangles, neuropil threads, or the aggregated microglial reaction which is characteristically associated with classic senile plaques. Convergence of input from limbic and cortical areas might play a significant role in the formation of these diffuse amyloid deposits.
    Type of Medium: Electronic Resource
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  • 8
    Electronic Resource
    Electronic Resource
    Springer
    Acta neuropathologica 84 (1992), S. 100-104 
    ISSN: 1432-0533
    Keywords: Parkinson's disease ; Complement ; Lewy bodies ; Oligodendrocytes
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Summary The substantia nigra (SN) in 11 Parkinson's disease (PD) patients and 5 neurologically normal controls was examined immunohistochemically using antibodies to various proteins of the complement system. In PD, but not in control SN, intra-and extraneuronal Lewy bodies and dendritic spheroid bodies were stained with anti-human C3d, C4d, C7 and C9 antibodies, but not with antibodies to C1q, fraction Bb of factor B or properdin. Axonal spheroid bodies in the nigrostriatal tract were not stained by any of the complement antibodies. However, complement-activated oligodendroglia were revealed by anti-C3d and anti-C4d antibodies in the PD substantia nigral area. These data indicate that some pathological structures in PD activate the classical complement pathway.
    Type of Medium: Electronic Resource
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