Abstract:
:The pattern of recovery of myelinated axons in the posterior tibial nerve after crushing was studied in rats chronically intoxicated with 2,5-hexanedione. It was given for 2 weeks before crushing (200 mg/kg i.p. 5 times a week) or additionally for two further weeks after the nerve crush. Two animals were examined from each group at approximately 1,2,3,4 and 8 weeks later. Return of function in poisoned animals was slower than in the controls. The numbers of regenerating myelinated fibres was severely reduced in poisoned animals up to 4 weeks later, but by 8 weeks the numbers equalled those in the control nerves. Marked impairment of initiation of neurite outgrowth was found, but once begun, axonal growth was comparable to controls and myelination occurred normally. Above the crush for 10 mm, filament-filled axonal swellings were found in poisoned animals accompanied by varying amounts of retrograde axonal degeneration. These findings are discussed in relation to the role of normal neurofilaments in axonal growth and the effects of probably cross-linking of these by 2,5-hexanedione on regenerating neurites.
journal_name
Acta Neuropatholjournal_title
Acta neuropathologicaauthors
Simonati A,Rizzuto N,Cavanagh JBdoi
10.1007/BF00703206subject
Has Abstractpub_date
1983-01-01 00:00:00pages
216-24issue
3eissn
0001-6322issn
1432-0533journal_volume
59pub_type
杂志文章abstract::Focal cortical dysplasias (FCD) which represent a composite group of cortical malformations are increasingly recognized as morphological substrate for severe therapy-refractory epilepsy in children and young adults. However, presurgical evaluation remains challenging as not all FCD variants can be reliably detected by...
journal_title:Acta neuropathologica
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abstract::We have previously characterized three human leucine-rich repeats and immunoglobulin-like domains (LRIG) genes and proteins, named LRIG1-3 and proposed that they may act as suppressors of tumor growth. The LRIG1 transmembrane protein antagonizes the activity of epidermal growth factor receptor family receptor tyrosine...
journal_title:Acta neuropathologica
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journal_title:Acta neuropathologica
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journal_title:Acta neuropathologica
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journal_title:Acta neuropathologica
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journal_title:Acta neuropathologica
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更新日期:1989-01-01 00:00:00
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abstract::The ultrastructural features of SOD1-positive aggregates were determined to clarify whether these aggregates are associated with the pathogenesis of SOD1 mutant mice. We examined the spinal cord of transgenic mice expressing a G93A mutant human SOD1 gene with fewer copies (gene copy 10). At the early presymptomatic st...
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pub_type: 杂志文章
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更新日期:2003-08-01 00:00:00
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journal_title:Acta neuropathologica
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journal_title:Acta neuropathologica
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更新日期:1982-01-01 00:00:00
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abstract::To investigate the relationship between cerebral amyloid angiopathy and subcortical (lobar) hemorrhage, we examined the severity of amyloid deposition in the leptomeningeal, cortical and subcortical arteries in 28 autopsied elderly patients with cerebral amyloid angiopathy with subcortical hemorrhage, deep cerebral he...
journal_title:Acta neuropathologica
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更新日期:1993-01-01 00:00:00
abstract::The ultrastructure of the nervous tissue in a benign ovarian teratoma is described. This tissue was organized into areas having both "meningeal" and "ependymal" surfaces, between which were found astrocytes, ependymal cells, neurones with synapses and microglia. These cells all had ultrastructural similarities to thei...
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更新日期:1994-01-01 00:00:00
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journal_title:Acta neuropathologica
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更新日期:2000-12-01 00:00:00
abstract::Nodding syndrome is an epidemic neurologic disorder of unknown cause that affects children in the subsistence-farming communities of East Africa. We report the neuropathologic findings in five fatal cases (13-18 years of age at death) of nodding syndrome from the Acholi people in northern Uganda. Neuropathologic exami...
journal_title:Acta neuropathologica
pub_type: 杂志文章
doi:10.1007/s00401-018-1909-9
更新日期:2018-11-01 00:00:00
abstract::Hyper- and hypothyroidism repercussions on soma, nucleus and cytoplasm increases were studied by electron microscopy on 7-, 14-, 21-, and 35-day-old rats. Adult normal animals were compared with adult ones made hypothyroid until they were 35 days old. Also heat value restriction of food intake effects were compared wi...
journal_title:Acta neuropathologica
pub_type: 杂志文章
doi:
更新日期:1978-09-15 00:00:00
abstract::Cerebrotendinous xanthomatosis (CTX), a rare autosomal-recessive lipid storage disease, has been well characterized clinically and biochemically, and recently also from the molecular biological aspect. However, only a very few publications deal with its neuropathology, and views on its pathogenesis vary. Based on a re...
journal_title:Acta neuropathologica
pub_type: 杂志文章
doi:10.1007/BF00294324
更新日期:1995-01-01 00:00:00
abstract::The E200K mutation is the most frequent prion protein gene (PRNP) mutation detected worldwide that is associated with Creutzfeldt-Jakob disease (CJD) and thought to have overlapping features with sporadic CJD, yet detailed neuropathological studies have not been reported. In addition to the prion protein, deposition o...
journal_title:Acta neuropathologica
pub_type: 杂志文章
doi:10.1007/s00401-010-0713-y
更新日期:2011-01-01 00:00:00
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journal_title:Acta neuropathologica
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更新日期:1988-01-01 00:00:00
abstract::Twenty necropsy cases of the association of fetal encephalitis with porencephaly, hydranencephaly or polymicrogyria were reviewed including 5 from the authors' material. The latter include a basket brain, a porencephalic necrosis of recent date and a polymicrogyria in the formative state. The supratentorial lesions ar...
journal_title:Acta neuropathologica
pub_type: 杂志文章
doi:10.1007/BF00685011
更新日期:1978-08-07 00:00:00
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journal_title:Acta neuropathologica
pub_type: 杂志文章
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更新日期:2012-08-01 00:00:00