DERMATOME MAPPING IN THE RAT HINDLIMB BY ELECTRICAL-STIMULATION OF THE SPINAL NERVES

被引：91

作者：

TAKAHASHI, Y

NAKAJIMA, Y

SAKAMOTO, T

机构：

[1] CHIBA UNIV,SCH MED,DEPT ORTHOPAED SURG,CHUO KU,CHIBA 260,JAPAN

[2] CHIBA UNIV,SCH MED,DEPT PHYSIOL,CHUO KU,CHIBA 280,JAPAN

来源：

NEUROSCIENCE LETTERS | 1994年 / 168卷 / 1-2期

关键词：

RAT; DERMATOME; SPINAL NERVE; C-FIBER; PLASMA EXTRAVASATION; EVANS BLUE; SUBSTANCE P; FK224;

D O I：

10.1016/0304-3940(94)90422-7

中图分类号：

Q189 [神经科学];

学科分类号：

071006 ;

摘要：

In rats treated with Evans blue (i.v.), electrical stimulation of the lumbar spinal nerves produced an extravasation zone in the skin. Stimulation of L(1) produced extravasation in the lower abdomen; that of L(2), in the cranial region of the hindlimb; that of L(3), in the ventral region of the hindlimb and the medial paw; that of L(4), in the lateral region of the hindlimb and the middle paw; that of L(5), in the caudal region of the hindlimb and the lateral paw; and that of L(6), in the caudal region of the hindlimb and the scrotum. Since the substance P antagonist FK224 inhibited the extravasation caused by stimulation of the sciatic nerve, the extravasation zones appeared to be related to antidromic activation of afferent C-fibers. Thus, a dermatome of afferent C-fibers was revealed in rats.

引用

页码：85 / 88

页数：4

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