Abstract:
:Although nerve conduction slowing is a well-accepted abnormality in rats with acute experimental diabetes, reports of neuropathological changes in diabetic rat nerves have been inconsistent. To examine this further, we studied electrophysiological and morphological features of posterior tibial nerves and their distal branches from four-week streptozotocin-induced diabetic rats and matched controls. Diabetic rat posterior tibial motor conduction was slowed (mean +/- 1 SD, 34.8 +/- 3.1 m/sec; controls, 41.2 +/- 2.5 m/sec), and evoked muscle response amplitudes were only half of control values. Using quantitative techniques, we documented a diminution in number of the largest myelinated fibers in otherwise normal mid posterior tibial nerves, with an increase in the smaller sizes, indicating either a degree of axonal atrophy or impaired fiber growth during development. The principal pathological finding was active breakdown of myelinated fibers in the most distal motor twigs of hindfoot muscles supplied by posterior tibial branches, with preservation of fibers in more proximal segments of these nerves. This anatomical lesion in diabetic nerves could account for both oberved conduction slowing and lowered muscle response amplitudes. A consistent feature in both diabetic and control mid lateral plantar nerves was a zone of demyelination that apparently occurs at this natural site of nerve entrapment in rats. Taken together, the pathological abnormalities of peripheral nerve in acute experimental diabetes are best explained as resulting from a distal axonopathy.
journal_name
Ann Neuroljournal_title
Annals of neurologyauthors
Brown MJ,Sumner AJ,Greene DA,Diamond SM,Asbury AKdoi
10.1002/ana.410080207subject
Has Abstractpub_date
1980-08-01 00:00:00pages
168-78issue
2eissn
0364-5134issn
1531-8249journal_volume
8pub_type
杂志文章abstract::Ten patients developed a subacute lower motor neuron syndrome as a remote effect of Hodgkin's disease or other lymphoma. The illness usually followed a benign course independent of the activity of the underlying neoplasm. Seven of the patients improved spontaneously, and 3 became neurologically normal. Two patients di...
journal_title:Annals of neurology
pub_type: 杂志文章
doi:10.1002/ana.410050310
更新日期:1979-03-01 00:00:00
abstract::Patterns of cerebral metabolic intercorrelations were compared in the resting state in 15 healthy young men (ages 20 to 32 years) and 15 healthy elderly men (ages 64 to 83 years). Controlling for whole-brain glucose metabolism, partial correlation coefficients were determined between pairs of regional cerebral metabol...
journal_title:Annals of neurology
pub_type: 杂志文章
doi:10.1002/ana.410190111
更新日期:1986-01-01 00:00:00
abstract::Clinical evidence is presented to support the contention that the sternocleidomastoid muscle is innervated primarily by undecussated fibers from the ipsilateral hemisphere. Stroke patients often show contralateral hemiparesis accompanied by weakness in head turning to the side of the paresis. ...
journal_title:Annals of neurology
pub_type: 杂志文章
doi:10.1002/ana.410070116
更新日期:1980-01-01 00:00:00
abstract:OBJECTIVE:This meta-analysis aims to quantitatively synthesize all studies that examine the association between adherence to a Mediterranean diet and risk of stroke, depression, cognitive impairment, and Parkinson disease. METHODS:Potentially eligible publications were those providing effect estimates of relative risk...
journal_title:Annals of neurology
pub_type: 杂志文章,meta分析
doi:10.1002/ana.23944
更新日期:2013-10-01 00:00:00
abstract::The value of various enhancement techniques as opposed to nonenhanced CT scanning was compared in 15 baboons with cerebral infarction secondary to embolization of the left middle cerebral artery. The most prominent CT findings in infarction included an area of low absorption in the opercula--basal ganglia--centrum sem...
journal_title:Annals of neurology
pub_type: 杂志文章
doi:10.1002/ana.410050108
更新日期:1979-01-01 00:00:00
abstract::We carried out a comprehensive assessment of eye movements in 2 subjects with impaired facial learning and recognition to determine if the defect might be associated with abnormal scanning of faces. Standard electroculogram showed that fixation, pursuit, saccades, and scanning of salient features of scenes and faces w...
journal_title:Annals of neurology
pub_type: 杂志文章
doi:10.1002/ana.410220111
更新日期:1987-07-01 00:00:00
abstract::The authors report on a series of spontaneous intracranial hemorrhages associated with vein of Galen aneurysmal malformations (VGAMs). Thirty-four children with VGAMs have been treated at this institution since 1986. Eight children (24%) harbored the mural-type malformation, and 26 (76%) had the choroidal-type lesion....
journal_title:Annals of neurology
pub_type: 杂志文章
doi:
更新日期:2000-06-01 00:00:00
abstract::In a prospective study, we repeatedly recorded fast goal-directed wrist movements of 8 patients who had experienced an acute cerebellar hypermetria due to a stroke and who had subsequently recovered clinically. Movements and the associated agonist and antagonist electromyographic (EMG) activities were recorded before ...
journal_title:Annals of neurology
pub_type: 杂志文章
doi:10.1002/ana.410380314
更新日期:1995-09-01 00:00:00
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journal_title:Annals of neurology
pub_type: 杂志文章
doi:10.1002/ana.410190212
更新日期:1986-02-01 00:00:00
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journal_title:Annals of neurology
pub_type: 杂志文章
doi:10.1002/ana.410400607
更新日期:1996-12-01 00:00:00
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journal_title:Annals of neurology
pub_type: 杂志文章
doi:10.1002/ana.410370306
更新日期:1995-03-01 00:00:00
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journal_title:Annals of neurology
pub_type: 杂志文章
doi:10.1002/ana.410040203
更新日期:1978-08-01 00:00:00
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journal_title:Annals of neurology
pub_type: 杂志文章
doi:10.1002/ana.10117
更新日期:2002-03-01 00:00:00
abstract:OBJECTIVE:Nemaline myopathy (NM) is one of the most common congenital nondystrophic myopathies and is characterized by muscle weakness, often from birth. Mutations in ACTA1 are a frequent cause of NM (ie, NEM3). ACTA1 encodes alpha-actin 1, the main constituent of the sarcomeric thin filament. The mechanisms by which m...
journal_title:Annals of neurology
pub_type: 杂志文章
doi:10.1002/ana.25144
更新日期:2018-02-01 00:00:00
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journal_title:Annals of neurology
pub_type: 杂志文章
doi:10.1002/ana.410200604
更新日期:1986-12-01 00:00:00
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journal_title:Annals of neurology
pub_type: 杂志文章
doi:10.1002/ana.20448
更新日期:2005-05-01 00:00:00
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journal_title:Annals of neurology
pub_type: 临床试验,杂志文章
doi:10.1002/ana.10433
更新日期:2003-02-01 00:00:00
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journal_title:Annals of neurology
pub_type: 杂志文章
doi:
更新日期:2000-09-01 00:00:00
abstract::The highly encephalitogenic guinea pig peptide 68-88 has been used to develop an effective and reproducible model of protection in the Lewis rat. Doses as low as 0.1 nmol of peptide protected 70% of rats when injected intraperitoneally six and four weeks prior to challenge with 0.05 nmol of the peptide in complete Fre...
journal_title:Annals of neurology
pub_type: 杂志文章
doi:10.1002/ana.410070409
更新日期:1980-04-01 00:00:00
abstract:OBJECTIVE:Although electrophysiologic dysfunction of the subthalamic nucleus is putative, deep brain stimulation of this structure has recently been reported to improve obsessions and compulsions. In Parkinson disease, sensorimotor subthalamic neurons display high-frequency burst firing, which is considered as an elect...
journal_title:Annals of neurology
pub_type: 杂志文章
doi:10.1002/ana.22222
更新日期:2011-05-01 00:00:00
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journal_title:Annals of neurology
pub_type: 杂志文章
doi:10.1002/ana.1159
更新日期:2001-10-01 00:00:00
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journal_title:Annals of neurology
pub_type: 杂志文章
doi:10.1002/ana.10529
更新日期:2003-04-01 00:00:00
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journal_title:Annals of neurology
pub_type: 杂志文章
doi:10.1002/ana.24504
更新日期:2015-11-01 00:00:00
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journal_title:Annals of neurology
pub_type: 杂志文章,评审
doi:10.1002/ana.10512
更新日期:2003-01-01 00:00:00
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journal_title:Annals of neurology
pub_type: 杂志文章
doi:10.1002/ana.410080404
更新日期:1980-10-01 00:00:00
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journal_title:Annals of neurology
pub_type: 杂志文章
doi:10.1002/ana.410050605
更新日期:1979-06-01 00:00:00
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journal_title:Annals of neurology
pub_type: 临床试验,杂志文章
doi:10.1002/ana.410140107
更新日期:1983-07-01 00:00:00
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journal_title:Annals of neurology
pub_type: 杂志文章
doi:10.1002/ana.410140212
更新日期:1983-08-01 00:00:00
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journal_title:Annals of neurology
pub_type: 杂志文章
doi:10.1002/ana.410400505
更新日期:1996-11-01 00:00:00
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journal_title:Annals of neurology
pub_type: 杂志文章
doi:10.1002/ana.410180312
更新日期:1985-09-01 00:00:00