Results 221 to 230 of about 167,091 (260)

Retrograde Degeneration of the Cochlear Nerve

Acta Oto-Laryngologica, 1975
Retrograde degeneration of the cochlear neurons has been studied in different types and degrees of peripheral cochlear damage such as acoustic trauma, intoxication, heredodegenerative deafness and others. It starts only when the peripheral dendrites to the inner hair cells are irreversibly damaged.
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Ischemic Degeneration of Nerve Fibers

Archives of Neurology, 1960
Direct evidence that nerve fiber degeneration may follow occlusion of groups of regional vasa nervorum, although provided by the experiments of Okada 17 (1905), Adams 1 (1943), Durward 11 (1948), and Roberts 19 (1948), has been scanty, and the conclusions to be drawn from the highly variable, but mainly negative, results of these experiments are ...
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Degeneration behaviour of the cochlear nerve

Archiv f�r Klinische und Experimentelle Ohren- Nasen- und Kehlkopfheilkunde, 1971
On the basis of the degeneration behaviour two different types of cochlear afferent neurons can be distinguished. About 95% of all cochlear neurons are of the common type I with large myelinated spiral ganglion cells. They show complete retrograde degeneration after transsection of the cochlear nerve and they are exclusively connected to the inner hair
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Peripheral Nerve Glycolysis in Wallerian Degeneration

Archives of Neurology, 1967
Although lLTHOUGH no completely satisfactory explanation for the changes occurring in the transected nerve has been established, nevertheless, changes in some enzymes associated with experimental wallerian degeneration have been reported. Most prominent among these are acetylcholinesterase, phosphatases, succinic dehydrogenase, and β-glucuronidase. 1-8
I, DeSibrik, D, O'Doherty
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Traumatic myxomatous degeneration of a peripheral nerve

Hand, 1974
Abstract A twenty-one-year-old man presented with an unresolved radial palsy of five months' duration. Surgical exploration revealed a cystic ganglion-like swelling within the radial nerve in the midarm. Histological examination of this mass demonstrated myxomatous degeneration of the nerve.
S A, Filarski, W F, Doyle, S B, Mutz
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Chlorhexidine-induced degeneration of adrenergic nerves

Acta Neuropathologica, 1984
Possible toxic effects of chlorhexidine (CHX) on the sympathetic adrenergic ground plexus were studied in whole mounts of albino rat irides using Falck-Hillarp fluorescence histochemistry. CHX dissolved in an isotone , buffered sodium-acetate solution or in 70% alcohol was injected into the anterior chamber of eye.
A, Henschen, L, Olson
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NERVE DEGENERATION IN POLIOMYELITIS

Archives of Neurology & Psychiatry, 1933
The special predilection of the virus of poliomyelitis for the large anterior horn cells of the spinal cord is a well established and generally accepted feature of this disease. The cytopathologic changes occurring in these cells have been reviewed frequently.
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Patterns of degeneration in the human cochlear nerve

Hearing Research, 1995
The patterns of neural degeneration of the spiral ganglion were studied in 12 human pathologic specimens and 2 normal neonatal specimens. Morphometric analysis of spiral ganglion cells included the maximum cross-sectional areas of both large (type 1) and small (type II) spiral ganglion cells.
C E, Zimmermann, B J, Burgess, J B, Nadol   +2 more
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Cochlear Nerve Degeneration Coincident With Adrenocerebroleukodystrophy

Archives of Otolaryngology - Head and Neck Surgery, 1976
A 19-month-old boy had adrenocerebroleukodystrophy and unusually severe cochlear nerve degeneration and demyelination, a condition in advance of that expected from known disease entities. We report the only known temporal bone study in adrenocerebroleukodystrophy.
M, Igarashi, J G, Neely, P F, Anthony, B R, Alford   +3 more
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The ultrastructure of degenerating rat sciatic nerves

Journal of Surgical Research, 1973
Abstract 1. (1). Following the complete division of a peripheral nerve within the distal stump both Schwann cells and endoneurial fibroblasts develop cytoplasmic vacuoles which are probably fragments of myelin. 2. (2). Intact nonmyelinated axons are found in the distal segment of divided nerves for at least four weeks. 3.
A M, Calabretta, B L, Munger, W P, Graham   +2 more
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