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  • 1
    ISSN: 1432-0533
    Keywords: Key words p75NTR ; Nerve regeneration ; Spinal cord ; Dorsal root ganglia ; Sympathetic ganglia
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract Expression of low-affinity neurotrophin receptor (p75NTR) was immunohistochemically examined in the peripheral nerve trunks, dorsal root ganglia, sympathetic nerve ganglia and spinal cords in various human neurological diseases manifesting peripheral neuropathies. p75NTR was expressed in the nerves with axonal degeneration, and was also prominent in the nerves with newly regenerating axons. In contrast, axonal pathology tended to reduce the expression of p75NTR in the neuronal perikarya of the dorsal root genglion and sympathetic nerve ganglion neurons. In the ventral and lateral horn cells, the p75NTR immunoreactivity was not detected in the normal and diseased nerves except for amyloid polyneuropathy. These p75NTR expressions in the diseased human peripheral nervous tissues would be regulated by an underlying pathology-related process, and could play a role in peripheral nerve repair.
    Type of Medium: Electronic Resource
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  • 2
    ISSN: 1432-0533
    Keywords: Key words X-linked recessive spinal and bulbar ; muscular atrophy ; Corticospinal tract ; Spinal ventral horn cells ; Alpha motor neuron ; Interneuron
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract A quantitative study was performed on spinal cord lesions in seven patients with X-linked recessive spinal and bulbar muscular atrophy. The myelinated fiber density of the lateral corticospinal tracts at the T7 cord level was well preserved for both large and small myelinated fibers. On the other hand, neurons in the L4 ventral horn were markedly depleted; marked loss was noted of the large alpha and medium-sized gamma motor neurons located in the lateral and medial nuclei as well as the small neurons in the intermediate zones of the ventral horn. These results suggest that myelinated fiber density and fiber-size distribution in the corticospinal tract are well preserved and that neuronal loss in the ventral horns is not restricted to alpha and gamma motoneurons but also involves small interneurons.
    Type of Medium: Electronic Resource
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