AXON RAMIFICATION FOLLOWING UNILATERAL CORTICAL ABLATION IN NEONATAL RATS

被引：9

作者：

ONO, K

WATANABE, Y

ISHIZUKA, C

UEMATSU, J

AISAKA, A

YAMANO, T

SHIMADA, M

机构：

[1] Department of Pediatrics, Shiga University of Medical Science, Ohtsu

来源：

BRAIN & DEVELOPMENT | 1994年 / 16卷 / 03期

关键词：

AXON RAMIFICATION; IPSILATERAL TRACT; NEURAL PLASTICITY; NEONATAL BRAIN LESION; CORTICOSPINAL TRACT; PYRAMIDAL TRACT; PYRAMIDAL DECUSSATION;

D O I：

10.1016/0387-7604(94)90084-1

中图分类号：

R74 [神经病学与精神病学];

学科分类号：

摘要：

We confirmed the formation of an aberrant ipsilateral corticospinal tract after unilateral cerebral cortical ablation during the neonatal period in rat. This tract was studied using anterograde horseradish peroxidase (HRP) tracing. Ramifications of the axons in the pyramidal tract were found to contribute to the ipsilateral tract at the level of the pyramidal decussation, suggesting that ramification of immature axons plays an important role in the formation of the ipsilateral corticospinal tract.

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页码：264 / 266

页数：3

相关论文

共 10 条

[1] PLASTICITY OF THE CORTICOSPINAL TRACT FOLLOWING MIDTHORACIC SPINAL-INJURY IN THE POSTNATAL RAT [J].

BERNSTEIN, DR ;

STELZNER, DJ .

JOURNAL OF COMPARATIVE NEUROLOGY, 1983, 221 (04) :382-400

[2]

JANOWSKY JS, 1986, DEV MED CHILD NEUROL, V28, P375

[3] AN ANTEROGRADE TRACER STUDY ON THE DEVELOPMENT OF CORTICOSPINAL PROJECTIONS FROM THE MEDIAL PREFRONTAL CORTEX IN THE RAT [J].

JOOSTEN, EAJ ;

VANEDEN, CG .

DEVELOPMENTAL BRAIN RESEARCH, 1989, 45 (02) :313-319

[4] IS SPROUTING THE RESULT OF A PERSISTENT NEONATAL CONNECTION [J].

NAH, SH ;

ONG, LS ;

LEONG, SK .

NEUROSCIENCE LETTERS, 1980, 19 (01) :39-44

[5] REORGANIZATION OF THE CORTICOSPINAL TRACT FOLLOWING NEONATAL UNILATERAL CORTICAL ABLATION IN RATS [J].

ONO, K ;

SHIMADA, M ;

YAMANO, T .

BRAIN & DEVELOPMENT, 1990, 12 (02) :226-236

[6] FORMATION OF AN IPSILATERAL CORTICOSPINAL TRACT AFTER ABLATION OF CEREBRAL-CORTEX IN NEONATAL RAT [J].

ONO, K ;

YAMANO, T ;

SHIMADA, M .

BRAIN & DEVELOPMENT, 1991, 13 (05) :348-351

[7] ELIMINATION OF SYNAPSES IN THE DEVELOPING NERVOUS-SYSTEM [J].

PURVES, D ;

LICHTMAN, JW .

SCIENCE, 1980, 210 (4466) :153-157

[8] SELECTIVE COLLATERAL ELIMINATION IN EARLY POSTNATAL-DEVELOPMENT RESTRICTS CORTICAL DISTRIBUTION OF RAT PYRAMIDAL TRACT NEURONS [J].

STANFIELD, BB ;

OLEARY, DDM ;

FRICKS, C .

NATURE, 1982, 298 (5872) :371-373

[9] SPARING OF SKILLED FORELIMB REACHING AND CORTICOSPINAL PROJECTIONS AFTER NEONATAL MOTOR CORTEX REMOVAL OR HEMIDECORTICATION IN THE RAT - SUPPORT FOR THE KENNARD DOCTRINE [J].

WHISHAW, IQ ;

KOLB, B .

BRAIN RESEARCH, 1988, 451 (1-2) :97-114

[10]

Wise S.P., 1986, SENSORY MOTOR AREAS, P243