大鼠腓深神经传入纤维在脊髓胶状质的定位投射—FRAP法

The Orientational Protections of the Afferent Fibers of Deep Peroneal Nerve tothe SG of Spinal Cord in Rats FRAP Method

目的：研究大鼠腓深神经传入纤维在脊髓胶状质（ＳＧ）的投射定位。方法：按照跨神经节溃变的原理，用抗氟化物酸性磷酸酶（ＦＲＡＰ）法和显微测量进行定量分析。结果：大鼠腓深神经向ＳＧ的纵向投射主要为Ｌ２～Ｌ６上部。Ｌ２～Ｌ６各节段ＳＧ水平向眉毛状反应带长所测均值分别为０．７６１、０．８２５、０．８８７、０．８９８、０．８１９ｍｍ，而腓深神经向Ｌ２～Ｌ６上部各节段ＳＧ水平向投射所测均值分别在０．４１４～０．４８１、０．３６２～０．５１４、０．３３５～０．４７２、０．３３９～０．４３７、０．３７２～０．４３９ｍｍ的范围。结论：腓深神经投射区主要位于ＳＧ的中间带偏内。

Objective To research the orientational projection of the afferent fibers of rat’s deep peroneal nerve to the substantia gelatinosa (SG) of spinal cord.Methods In accordance with the principle of transganglion degeneration by adopting fluoride resistant acid phosphtase (FRAP) method and micromeasurement technique a quantitative analysis was made.Results The longitudinal projection of the deep peroneal nerves to SG were found in L 2～L 6.In accordance with micromeasurements,the mean value (mm) of horizontal eyebrow like reactive zone of the SG in L 2～L 6 were 0.761,0.825,0.887,0.898,and 0.819,while the mean value(mm) of horizontal projection of the deep peroneal nerve to L 2～L 6 upper part were 0.414～0.481,0.362～0.514,0.335～0.472,0.339～0.437 and 0.372～0.439,respectively.Conclusion The results show that the projection area of the deep peroneal nerve is mainly on the intermediate zone medialis of SG.